Posted: 7/6/2009 2:10:02 AM EDT
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I'm tossing a roll bar into my girly car so I can take it to a local track for time trials. The track people also recommend a 4 or 5 point harness.
OK, you have to wear seat belts, the 3 point kind they put in at the manufacturers. Is it OK to replace them with something better? Or is it some kind of major felony arrest if you do? |
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I'm tossing a roll bar into my girly car so I can take it to a local track for time trials. The track people also recommend a 4 or 5 point harness. OK, you have to wear seat belts, the 3 point kind they put in at the manufacturers. Is it OK to replace them with something better? Or is it some kind of major felony arrest if you do? wow.. seriously? 
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Seriously? Felony arrest? If it is illegal where you are you might get an infraction fine and/or a fix-it ticket. Hey, I just got out of the joint. Two to five for tearing a tag off a matteress. (turn on your sarcasm meter) One of these would have helped >>> 
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Read your state law. I'm guessing any DOT approved belts would be fine. I sort of figure the same, and I really can't imagine too many LEOs writing a guy up for something like that if the seat belt EXCEEDS spec, even if it WASN"T actually kosher, but it seems that there is always a Barney Fife out there ready to create a problem where there isn't one. |
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Pennsylvania Vehicle Code CHILD PASSENGER PROTECTION §4581. Restraint systems. ... each driver and front seat occupant of a passenger car, class I truck, class II truck or motor home operated in this commonwealth shall wear a properly adjusted and fastened safety seat belt system. ... Didnt see any standards...but I am sure they are there somewhere... |
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Here is the OK law on it. Looks like OK follows the Fed regs. (posted in following post)
Your state probably has something similar. All safety belts or safety shoulder harnesses shall be of a type and shall be installed pursuant to 49 C.F.R. §571.208 et seq. All such safety belts or safety shoulder harnesses shall be of a type and shall be installed in a manner approved by the Department of Public Safety. The Department shall establish specifications and requirements for approved types of safety belts and safety shoulder harnesses and attachments thereto. The Department shall accept, as approved, all safety seat belt and safety shoulder harness installations and the belts, harnesses and anchors meeting the society of automotive engineers' specifications. I would call the Highway Patrol or State Police. They usually are the sticklers on seatbelt laws. |
Here are the Fed regs. For your reading enjoyment. 
571.208 Standard No. 208; Occupant crash protection S1. Scope. This standard specifies performance requirements for the protection of vehicle occupants in crashes. S2. Purpose. The purpose of this standard is to reduce the number of deaths of vehicle occupants, and the severity of injuries, by specifying vehicle crashworthiness requirements in terms of forces and accelerations measured on anthropomorphic dummies in test crashes, and by specifying equipment requirements for active and passive restraint systems. S3. Application. This standard applies to passenger cars, multipurpose passenger vehicles, trucks, and buses. In addition, S9., Pressure vessels and explosive devices, applies to vessels designed to contain a pressurized fluid or gas, and to explosive devices, for use in the above types of motor vehicles as part of a system designed to provide protection to occupants in the event of a crash. S4. General requirements. S4.1 Passenger cars. S4.1.1 Passenger cars manufactured from January 1, 1972, to August 31, 1973. Each passenger car manufactured from January 1, 1972, to August 31, 1973, inclusive, shall meet the requirements of S4.1.1.1, S4.1.1.2, or S4.1.1.3. A protection system that meets the requirements of S4.1.1.1, or S4.1.1.2 may be installed at one or more designated sting positions of a vehicle that otherwise meets the requirements of S4.1.1.3. S4.1.1.1 First option - complete passive protection system. The vehicle shall meet the crash protection requirements of S5. by means that require no action by vehicle occupants. S4.1.1.2 Second option - lap belt protection system with belt warning. The vehicle shall - (a) At each designated seating position have a Type 1 seatbelt assembly or a Type 2 seatbelt assembly with a detachable upper torso portion that conforms to S7.1 and S7.2 of this standard; (b) At each front outboard designated seating position, have a seat belt warning system that conforms to S7.3; and (c) Meet the frontal crash protection requirements of S5.1, in a perpendicular impact, with respect to anthropomorphic test devices in each front outboard designated seating position restrained only by Type 1 seat belt assemblies. S4.1.1.3 Third option - lap and shoulder belt protection system with belt warning. S4.1.1.3.1 Except for convertibles and open-body vehicles, the vehicle shall - (a) At each front outboard designated seating position have a Type 2 seatbelt assembly that conforms to Sec. 571.209 and S7.1 and S7.2 of this standard, with either an integral or detachable upper torso portion, and a seatbelt warning system that conforms to S7.3; (b) At each designated seating position other than the front outboard positions, have a Type 1 or Type 2 seat belt assembly that conforms to Sec. 571.209 and to S7.1 and S7.2 of this standard; and (c) When it perpendicularly impacts a fixed collision barrier, while moving longitudinally forward at any speed up to and including 30 m.p.h., under the test conditions of S8.1 with anthropomorphic test devices at each front outboard position restrained by Type 2 seatbelt assemblies, experience no complete separation of any load-bearing element of a seatbelt assembly or anchorage. S4.1.1.3.2 Convertibles and open-body type vehicles shall at each designated seating position have a Type 1 or Type 2 seatbelt assembly that conforms to Sec. 571.209 and to S7.1 and S7.2 of this standard, and at each front outboard designated seating position have a seatbelt warning system that conforms to S7.3. S4.1.2 Passenger cars manufactured on or after September 1, 1973, and before September 1, 1986. Each passenger car manufactured on or after September 1, 1973, and before September 1, 1986, shall meet the requirements of S4.1.2.1, S4.1.2.2 or S4.1.2.3. A protection system that meets the requirements of S4.1.2.1 or S4.1.2.2 may be installed at one or more designated seating positions of a vehicle that otherwise meets the requirements of S4.1.2.3. S4.1.2.1 First option - frontal/angular automatic protection system. The vehicle shall: (a) At each front outboard designated seating position meet the frontal crash protection requirements of S5.1 by means that require no action by vehicle occupants; (b) At the front center designated seating position and at each rear designated seating position have a Type 1 or Type 2 seat belt assembly that conforms to Standard No. 209 and to S7.1 and S7.2; and (c) Either. (1) Meet the lateral crash protection requirements of S5.2 and the rollover crash protection requirements of S5.3 by means that require no action by vehicle occupants; or (2) At each front outboard designated seating position have a Type 1 or Type 2 seat belt assembly that conforms to Standard No. 209 and S7.1 through S7.3, and that meets the requirements of S5.1 with front test dummies as required by S5.1, restrained by the Type 1 or Type 2 seat belt assembly (or the pelvic portion of any Type 2 seat belt assembly which has a detachable upper torso belt) in addition to the means that require no action by the vehicle occupant. S4.1.2.2 Second option - head-on automatic protection system. The vehicle shall - (a) At each designated seating position have a Type 1 seat belt assembly or Type 2 seat belt assembly with a detachable upper torso portion that conforms to S7.1 and S7.2 of this standard. (b) At each front outboard designated seating position, meet the frontal crash protecton requirements of S5.1, in a perpendicular impact, by means that require no action by vehicle occupants; (c) At each front outboard designated seating position, meet the frontal crash protection requirements of S5.1, in a perpendicular impact, with a test device restrained by a Type 1 seat belt assembly; and (d) At each front outboard designated seating position, have a seat belt warning system that conforms to S7.3. S4.1.2.3 Third option - lap and shoulder belt protection system with belt warning. S4.1.2.3.1 Except for convertibles and open-body vehicles, the vehicle shall - (a) At each front outboard designated seating position have a seat belt assembly that conforms to S7.1 and S7.2 of this standard, and a seat belt warning system that conforms to S7.3. The belt assembly shall be either a Type 2 seat belt assembly with a nondetachable shoulder belt that conforms to Standard No. 209 (Sec. 571.209), or a Type 1 seat belt assembly such that with a test device restrained by the assembly the vehicle meets the frontal crash protection requirements of S5.1 in a perpendicular impact. (b) At any center front designated seating position, have a Type 1 or Type 2 seat belt assembly that conforms to Standard No. 209 (Sec. 571.209) and to S7.1 and S7.2 of this standard, and a seat belt warning system that conforms to S7.3; and (c) At each other designated seating position, have a Type 1 or Type 2 seat belt assembly that conforms to Standard No. 209 (Sec. 571.209) and S7.1 and S7.2 of this standard. S4.1.2.3.2 Convertibles and open-body type vehicles shall at each designated seating position have a Type 1 or Type 2 seat belt assembly that conforms to Standard No. 209 (Sec. 571.209) and to S7.1 and S7.2 of this standard, and at each front designated seating position have a seat belt warning system that conforms to S7.3. S4.1.3 Passenger cars manufactured on or after September 1, 1986, and before September 1, 1989. S4.1.3.1 Passenger cars manufactured on or after September 1, 1986, and before September 1, 1987. S4.1.3.1.1 Subject to S4.1.3.1.2 and S4.1.3.4, each passenger car manufactured on or after September 1, 1986, and before September 1, 1987, shall comply with the requirements of S4.1.2.1, S4.1.2.2 or S4.1.2.3. A vehicle shall not be deemed to be in noncompliance with this standard if its manufacturer establishes that it did not have reason to know in the exercise of due care that such vehicle is not in conformity with the requirement of this standard. S4.1.3.1.2 Subject to S4.1.3.4 and S4.1.5, the amount of passenger cars, specified in S4.1.3.1.1 complying with the requirements of S4.1.2.1 shall be not less than 10 percent of: (a) The average annual production of passenger cars manufactured on or after September 1, 1983, and before September 1, 1986, by each manufacturer, or (b) The manufacturer's annual production of passenger cars during the period specified in S4.1.3.1.1. S4.1.3.1.3 A manufacturer may exclude convertibles which do not comply with the requirements of S4.1.2.1, when it is calculating its average annual production under S4.1.3.1.2(a) or its annual production under S4.1.3.1.2(b). S4.1.3.2 Passenger cars manufactured on or after September 1, 1987, and before September 1, 1988. S4.1.3.2.1 Subject to S4.1.3.2.2 and S4.1.3.4, each passenger car manufactured on or after September 1, 1987, and before September 1, 1988, shall comply with the requirements of S4.1.2.1, S4.1.2.2 or S4.1.2.3. A vehicle shall not be deemed to be in noncompliance with this standard if its manufacturer establishes that it did not have reason to know in the exercise of due care that such vehicle is not in conformity with the requirement of this standard. S4.1.3.2.2 Subject to S4.1.3.4 and S4.1.5, the amount of passenger cars specified in S4.1.3.2.1 complying with the requirements of S4.1.2.1. shall be not less than 25 percent of: (a) The average annual production of passenger cars manufactured on or after September 1, 1984, and before September 1, 1987, by each manufacturer, or (b) The manufacturer's annual production of passenger cars during the period specified in S4.1.3.2.1. S4.1.3.2.3 A manufacturer may exclude convertibles which do not comply with the requirements of S4.1.2.1, when it is calculating its average annual production under S4.1.3.2.2(a) or its annual production under S4.1.3.2.2(b). S4.1.3.3 Passenger cars manufactured on or after September 1, 1988, and before September 1, 1989. S4.1.3.3.1 Subject to S4.1.3.3.2 and S4.1.3.4, each passenger car manufactured on or after September 1, 1988, and before September 1, 1989, shall comply with the requirements of S4.1.2.1, S4.1.2.2 or S4.1.2.3. A vehicle shall not be deemed to be in noncompliance with this standard if its manufacturer establishes that it did not have reason to know in the exercise of due care that such vehicle is not in conformity with the requirement of this standard. S4.1.3.3.2 Subject to S4.1.3.4 and S4.1.5, the amount of passenger cars specified in S4.1.3.3.1 complying with the requirements of S4.1.2.1 shall be not less than 40 percent of: (a) The average annual production of passenger cars manufactured on or after September 1, 1985, and before September 1, 1988, by each manufacturer or (b) The manufacturer's annual production of passenger cars during the period specified in S4.1.3.3.1. S4.1.3.3.3 A manufacturer may exclude convertibles which do not comply with the requirements of S4.1.2.1, when it is calculating its average annual production under S4.1.3.3.2(a) or its annual production under S4.1.3.3.2(b). S4.1.3.4 Calculation of complying passenger cars. (a) For the purposes of calculating the numbers of cars manufactured under S4.1.3.1.2, S4.1.3.2.2, or S4.1.3.3.2 to comply with S4.1.2.1: (1) Each car whose driver's seating position complies with the requirements of S4.1.2.1(a) by means not including any type of seat belt and whose front right seating position will comply with the requirements of S4.1.2.1(a) by any means is counted as 1.5 vehicles, and (2) Each car whose driver's seating position complies with the requirements of S4.1.2.1(a) by means not including any type of seat belt and whose right front seat seating position is equipped with a manual Type 2 seat belt is counted as one vehicle. (b) For the purposes of complying with S4.1.3.1.2, a passenger car may be counted if it: (1) Is manufactured on or after September 1, 1985, but before September 1, 1986, and (2) Complies with S4.1.2.1. (c) For the purposes of complying with S4.1.3.2.2, a passenger car may be counted if it: (1) Is manufactured on or after September 1, 1985, but before September 1, 1987, (2) Complies with S4.1.2.1, and (3) Is not counted toward compliance with S4.1.3.1.2 (d) For the purposes of complying with S4.1.3.3.2, a passenger car may be counted if it: (1) Is manufactured on or after September 1, 1985, but before September 1, 1988, (2) Complies with S4.1.2.1, and (3) Is not counted toward compliance with S4.1.3.1.2 or S4.1.3.2.2. S4.1.3.5 Passenger cars produced by more than one manufacturer. S4.1.3.5.1 For the purposes of calculating average annual production of passenger cars for each manufacturer and the amount of passenger cars manufactured by each manufacturer under S4.1.3.1.2, S4.1.3.2.2 or S4.1.3.3.2, a passenger car produced by more than one manufacturer shall be attributed to a single manufacturer as follows, subject to S4.1.3.5.2: (a) A passenger car which is imported shall be attributed to the importer. (b) A passenger car manufactured in the United States by more than one manufacturer, one of which also markets the vehicle, shall be attributed to the manufacturer which markets the vehicle. S4.1.3.5.2 A passenger car produced by more than one manufacturer shall be attributed to any one of the vehicle's manufacturers specified by an express written contract, reported to the National Highway Traffic Safety Administration under 49 CFR Part 585, between the manufacturer so specified and the manufacturer to which the vehicle would otherwise be attributed under S4.1.3.5.1. S4.1.4 Passenger cars manufactured on or after September 1, 1989. S4.1.4.1 Except as provided in S4.1.4.2, each passenger car manufactured on or after September 1, 1989 shall comply with the requirements of S4.1.2.1. Any passenger car manufactured on or after September 1, 1989 and before September 1, 1993 whose driver's designated seating position complies with the requirements of S4.1.2.1(a) by means not including any type of seat belt and whose right front designated seating position is equipped with a manual Type 2 seat belt so that the seating position complies with the occupant crash protection requirements of S5.1, with the Type 2 seat belt assembly adjusted in accordance with S7.4.2, shall be counted as a vehicle complying with S4.1.2.1. A vehicle shall not be deemed to be in noncompliance with this standard if its manufacturer establishes that it did not know in the exercise of due care that such vehicle is not in conformity with this standard. S4.1.4.2 (a) Each passenger car, other than a convertible, manufactured before December 11, 1989 may be equipped with, and each passenger car, other than a convertible, manufactured on or after December 11, 1989 and before September 1, 1990 shall be equipped with a Type 2 seat belt assembly at every forward-facing rear outboard designated seating position. Type 2 seat belt assemblies installed pursuant to this provision shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1.1 of this standard. (b) Except as provided in S4.1.4.2.1 and S4.1.4.2.2, each passenger car, other than a convertible, manufactured on or after September 1, 1990 and each convertible passenger car manufactured on or after September 1, 1991 shall be equipped with an integral Type 2 seat belt assembly at every forward-facing rear outboard designated seating position. Type 2 seat belt assemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 an S7.2 of this standard. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. (c) As used in this section, 'rear outboard designated seating position' means any 'outboard designated seating position' (as that term is defined at 49 CFR 571.3) that is rearward of the front seat(s), except any designated seating position adjacent to a walkway that is located between the seat and the near side of the vehicle and is designed to allow access to more rearward seating positions. S4.1.4.2.1 Any rear outboard designated seating position with a seat that can be adjusted to be forward-facing and to face some other direction shall either: (i) Meet the requirements of S4.1.4.2 with the seat in any position in which it can be occupied while the vehicle is in motion; or (ii) When the seat is in its forward-facing position, have a Type 2 seat belt assembly with an upper torso restraint that conforms to S7.1 and S7.2 of this standard and that adjusts by means of an emergency locking retractor that conforms with Standard No. 209 (49 CFR 571.209), which upper torso restraint may be detachable at the buckle, and, when the seat is in any position in which it can be occupied while the vehicle is in motion, have a Type 1 seat belt or the pelvic portion of a Type 2 seat belt assembly that conforms to S7.1 and S7.2 of this standard. S4.1.4.2.2 Any rear outboard designated seating position on a readily removable seat (that is, a seat designed to be easily removed and replaced by means installed by the manufacturer for that purpose) in a vehicle manufactured on or after September 1, 1992 shall meet the requirements of S4.1.4.2 and may use an upper torso belt that detaches at either its upper or lower anchorage point, but not both anchorage points, to meet those requirements. The means for detaching the upper torso belt shall not use any pushbutton action. S4.1.5 Mandatory seatbelt use laws. S4.1.5.1 If the Secretary of Transportation determines, by not later than April 1, 1989, that state mandatory safety belt usage laws have been enacted that meet the criteria specified in S4.1.5.2 and that are applicable to not less than two-thirds of the total population of the 50 states and the District of Columbia (based on the most recent Estimates of the Resident Population of States, by Age, Current Population Reports, Series P-25, Bureau of the Census), each passenger car manufactured under S4.1.3 or S4.1.4 on or after the date of that determination shall comply with the requirements of S4.1.2.1, S4.1.2.2. or S4.1.2.3. S4.1.5.2 The minimum criteria for state mandatory safety belt usage laws are: (a) Require that each front seat occupant of a passenger car equipped with safety belts under Standard No. 208 has a safety belt properly fastened about his or her body at all times when the vehicle is in forward motion. (b) If waivers from the safety belt usage requirement are to be provided, permit them for medical reasons only. (c) Provide for the following enforcement measures: (1) A penalty of not less than $25.00 (which may include court costs) for each occupant of a car who violates the belt usage requirement. (2) A provision specifying that the violation of the belt usage requirement may be used to mitigate damages with respect to any person who is involved in a passenger car accident while violating the belt usage requirement and who seeks in any subsequent litigation to recover damages for injuries resulting from the accident. This requirement is satisfied if there is a rule of law in the State permitting such mitigation. (3) A program to encourage compliance with the belt usage requirement. (d) An effective date of not later than September 1, 1989. S4.2 Trucks and multipurpose passenger vehicles with GVWR of 10,000 pounds or less. S4.2.1 Trucks and multipurpose passenger vehicles with a GVWR of 10,000 pounds or less, manufactured on or after January 1, 1976 and before September 1, 1991. Each truck and multipurpose passenger vehicle, with a gross vehicle weight rating of 10,000 pounds or less, manufactured before September 1, 1991, shall meet the requirements of S4.1.2.1, or at the option of the manufacturer, S4.1.2.2 or S4.1.2.3 (as specified for passenger cars), except that forward control vehicles manufactured prior to September 1, 1981, convertibles, open-body type vehicles, walk-in van-type trucks, motor homes, vehicles designed to be exclusively sold to the U.S. Postal Service, and vehicles carrying chassis-mount campers may instead meet the requirements of S4.2.1.1 or S4.2.1.2. S4.2.1.1 First option - complete automatic protection system. The vehicle shall meet the crash protection requirements of S5 by means that require no action by vehicle occupants. S4.2.1.2 Second option - belt system. The vehicle shall have seat belt assemblies that conform to Standard 209 installed as follows: (a) A Type 1 or Type 2 seat belt assembly shall be installed for each designated seating position in convertibles, open-body type vehicles, and walk-in van-type trucks. (b) In all vehicles except those for which requirements are specified in S4.2.1.2(a), a Type 2 seat belt assembly shall be installed for each outboard designated seating position that includes the windshield header within the head impact area, and a Type 1 or Type 2 seat belt assembly shall be installed for each other designated seating position. S4.2.2 Trucks and multipurpose passenger vehicles with a GVWR of 8,500 pounds or less and an unloaded vehicle weight of 5,500 pounds or less, manufactured on or after September 1, 1991. Each truck and multipurpose passenger vehicle, with a gross vehicle weight rating of 8,500 pounds or less and an unloaded vehicle weight of 5,500 pounds or less, manufactured on or after September 1, 1991, shall meet the requirements of S4.1.2.1, or at the option of the manufacturer, S4.1.2.2 or S4.1.2.3 (as specified for passenger cars), except that convertibles, open-body type vehicles, walk-in van-type trucks, motor homes, vehicles designed to be exclusively sold to the U.S. Postal Service, and vehicles carrying chassis-mount campers may instead meet the requirements of S4.2.1.1 or S4.2.1.2. Each Type 2 seat belt assembly installed in a front outboard designated seating position in accordance with S4.1.2.3 shall meet the requirements of S4.6. S4.2.3 Trucks and multipurpose passenger vehicles manufactured on or after September 1, 1991 with either a GVWR of more than 8,500 pounds but not greater than 10,000 pounds or with an unloaded vehicle weight greater than 5,500 pounds and a GVWR of 10,000 pounds or less. Each truck and multipurpose passenger vehicle manufactured on or after September 1, 1991, that has either a gross vehicle weight rating which is greater than 8,500 pounds, but not greater than 10,000 pounds, or has an unloaded vehicle weight greater than 5,500 pounds and a GVWR of 10,000 pounds or less shall meet the requirements of S4.1.2.1, or at the option of the manufacturer, S4.1.2.2 or S4.1.2.3 (as specified for passenger cars), except that convertibles, open-body type vehicles, walk-in van-type trucks, motor homes, vehicles designed to be exclusively sold to the U.S. Postal Service, and vehicles carrying chassis-mount campers may instead meet the requirements of S4.2.1.1 or S4.2.1.2. S4.2.4 Trucks and multipurpose passenger vehicles manufactured on or after September 1, 1991 with a GVWR of 10,000 pounds or less. Except as provided in S4.2.4.2 and S4.2.4.3, each truck and each multipurpose passenger vehicle, other than a motor home, manufactured on or after September 1, 1991 that has a gross vehicle weight rating of 10,000 pounds or less shall be equipped with an integral Type 2 seat belt assembly at every forward-facing rear outboard designated seating position. Type 2 seat belt assemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 and S7.2 of this standard. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. S4.2.4.1 As used in this section - (a) Motor home means a motor vehicle with motive power that is designed to provide temporary residential accommodations, as evidenced by the presence of at least four of the following facilities: cooking; refrigeration or ice box; self-contained toilet; heating and/or air conditioning; a potable water supply system including a faucet and a sink; and a separate 110-125 volt electrical power supply and/or an LP gas supply. (b) Rear outboard designated seating position means any 'outboard designated seating position' (as that term is defined at 49 CFR 571.3) that is rearward of the front seat(s), except any designated seating positions adjacent to a walkway located between the seat and the side of the vehicle, which walkway is designed to allow access to more rearward seating positions. S4.2.4.2 Any rear outboard designated seating position with a seat that can be adjusted to be forward-facing and to face some other direction shall either: (i) Meet the requirements of S4.2.4 with the seat in any position in which it can be occupied while the vehicle is in motion; or (ii) When the seat is in its forward-facing position, have a Type 2 seat belt assembly with an upper torso restraint that conforms to S7.1 and S7.2 of this standard and that adjusts by means of an emergency locking retractor that conforms with Standard No 209 (49 CFR 571.209), which upper torso restraint may be detachable at the buckle, and, when the seat is in any position in which it can be occupied while the vehicle is in motion, have a Type 1 seat belt or the pelvic portion of a Type 2 seat belt assembly that conforms to S7.1 and S7.2 of this standard. S4.2.4.3 Any rear outboard designated seating position on a readily removable seat (that is, a seat designed to be easily removed and replaced by means installed by the manufacturer for that purpose) in a vehicle manufactured on or after September 1, 1992 shall meet the requirements of S4.2.4 and may use an upper torso belt that detaches at either its upper or lower anchorage point, but not both anchorage points, to meet those requirements. The means for detaching the upper torso belt shall not use any pushbutton action. S4.3 Trucks and multipurpose passenger vehicles, with GVWR of more than 10,000 pounds. S4.3.1 Trucks and multipurpose passenger vehicles with a GVWR of more than 10,000 pounds, manufactured in or after January 1, 1972 and before September 1, 1990. Each truck and multipurpose passenger vehicle with a gross vehicle weight rating of more than 10,000 pounds, manufactured on or after January 1, 1972 and before September 1, 1990, shall meet the requirements of S4.3.1.1 or S4.3.1.2. A protection system that meets the requirements of S4.3.1.1 may be installed at one or more designated seating positions of a vehicle that otherwise meets the requirements of S4.3.1.2. S4.3.1.1 First option - complete passenger protection system. The vehicle shall meet the crash protection requirements of S5 by means that require no action by vehicle occupants. S4.3.1.2 Second option - belt system. The vehicle shall, at each designated seating position, have either a Type 1 or a Type 2 seat belt assembly that conforms to S571.209. S4.3.2 Trucks and multipurpose passenger vehicles with a GVWR of more than 10,000 pounds, manufactured on or after September 1, 1990. Each truck and multipurpose passenger vehicle with a gross vehicle weight rating of more than 10,000 pounds, manufactured on or after September 1, 1990, shall meet the requirements of S4.3.2.1 or S4.3.2.2. A protection system that meets the requirements of S4.3.2.1 may be installed at one or more designated seating positions of a vehicle that otherwise meets the requirements of S4.3.2.2. S4.3.2.1 First option - complete passenger protection system. The vehicle shall meet the crash protection requirements of S5 by means that require no action by vehicle occupants. S4.3.2.2 Second option - belt system. The vehicle shall, at each designated seating position, have either a Type 1 or a Type 2 seat belt assembly that conforms to Sec. 571.209 of this part and S7.2 of this Standard. A Type 1 belt assembly or the pelvic portion of a dual retractor Type 2 belt assembly installed at a front outboard seating position shall include either an emergency locking retractor or an automatic locking retractor. If a seat belt assembly installed at a front outboard seating position includes an automatic locking retractor for the lap belt or the lap belt portion, that seat belt assembly shall comply with the following: (a) An automatic locking retractor used at a front outboard seating position that has some type of suspension system for the seat shall be attached to the seat structure that moves as the suspension system functions. (b) The lap belt or lap belt portion of a seat belt assembly equipped with an automatic locking retractor that is installed at a front outboard seating position must allow at least 3/4 inch, but less than 3 inches, of webbing movement before retracting webbing to the next locking position. (c) Compliance with S4.3.2.2(b) of this standard is determined as follows: (1) The seat belt assembly is buckled and the retractor end of the seat belt assembly is anchored to a horizontal surface. The webbing for the lap belt or lap belt portion of the seat belt assembly is extended to 75 percent of its length and the retractor is locked after the initial adjustment. (2) A load of 20 pounds is applied to the free end of the lap belt or the lap belt portion of the belt assembly (i.e., the end that is not anchored to the horizontal surface) in the direction away from the retractor. The position of the free end of the belt assembly is recorded. (3) Within a 30 second period, the 20 pound load is slowly decreased, until the retractor moves to the next locking position. The position of the free end of the belt assembly is recorded again. (4) The difference between the two positions recorded for the free end of the belt assembly shall be at least 3/4 inch but less than 3 inches. S4.4 Buses. S4.4.1 Buses manufactured on or after January 1, 1972 and before September 1, 1990. Each bus manufactured on or after January 1, 1972 and before September 1, 1990, shall meet the requirements of S4.4.1.1 or S4.4.1.2. S4.4.1.1 First option - complete passenger protection system - driver only. The vehicle shall meet the crash protection requirements of S5, with respect to an anthropomorphic test dummy in the driver's designated seating position, by means that require no action by vehicle occupants. S4.4.1.2 Second option - belt system - driver only. The vehicle shall, at the driver's designated seating position, have either a Type 1 or a Type 2 seat belt assembly that conforms to S571.209. S4.4.2 Buses manufactured on or after September 1, 1990. Each bus manufactured on or after September 1, 1990, shall meet the requirements of S4.4.2.1 or S4.4.2.2. S4.4.2.1 First option - complete passenger protection system - driver only. The vehicle shall meet the crash protection requirements of S5, with respect to an anthropomorphic test dummy in the driver's designated seating position, by means that require no action by vehicle occupants. S4.4.2.2 Second option - belt system - driver only. The vehicle shall, at the driver's designated seating position, have either a Type 1 or a Type 2 seat belt assembly that conforms to Sec. 571.209 of this part and S7.2 of this Standard. A Type 1 belt assembly or the pelvic portion of a dual retractor Type 2 belt assembly installed at the driver's seating position shall include either an emergency locking retractor or an automatic locking retractor. If a seat belt assembly installed at the driver's seating position includes an automatic locking retractor for the lap belt or the lap belt portion, that seat belt assembly shall comply with the following: (a) An automatic locking retractor used at a driver's seating position that has some type of suspension system for the seat shall be attached to the seat structure that moves as the suspension system functions. (b) The lap belt or lap belt portion of a seat belt assembly equipped with an automatic locking retractor that is installed at the driver's seating position must allow at least 3/4 inch, but less than 3 inches, of webbing movement before retracting webbing to the next locking position. (c) Compliance with S4.4.2.2(b) of this standard is determined as follows: (1) The seat belt assembly is buckled and the retractor end of the seat belt assembly is anchored to a horizontal surface. The webbing for the lap belt or lap belt portion of the seat belt assembly is extended to 75 percent of its length and the retractor is locked after the initial adjustment. (2) A load of 20 pounds is applied to the free end of the lap belt or the lap belt portion of the belt assembly (i.e., the end that is not anchored to the horizontal surface) in the direction away from the retractor. The position of the free end of the belt assembly is recorded. (3) Within a 30 second period, the 20 pound load is slowly decreased, until the retractor moves to the next locking position. The position of the free end of the belt assembly is recorded again. (4) The difference between the two positions recorded for the free end of the belt assembly shall be at least 3/4 inch but less than 3 inches. S4.4.3 Buses manufactured on or after September 1, 1991. S4.4.3.1 Each bus with a gross vehicle weight rating of more than 10,000 pounds shall comply with the requirements S4.4.2.1 or S4.4.2.2. S4.4.3.2 Except as provided in S4.4.3.2.2 and S4.4.3.2.3, each bus with a gross vehicle weight rating of 10,000 pounds or less, except a school bus, shall be equipped with an integral Type 2 seat belt assembly at the driver's designated seating position and at the front and every rear forward-facing outboard designated seating position, and with a Type 1 or Type 2 seat belt assembly at all other designated seating positions. Type 2 seat belt asemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 and S7.2 of this standard. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. S4.4.3.2.1 As used in this section, a 'rear outboard designated position' means any 'outboard designated seating position' (as that term is defined at 49 CFR 571.3) that is rearward of the front seat(s), except any designated seating positions adjacent to a walkway located between the seat and the side of the vehicle, which walkway is designed to allow access to more rearward seating positions. S4.4.3.2.2 Any rear outboard designated seating position with a seat that can be adjusted to be forward-facing and to face some other direction shall either: (i) Meet the requirements of S4.4.3.2 with the seat in any position in which it can be occupied while the vehicle is in motion; or (ii) When the seat is in its forward-facing position, have a Type 2 seat belt assembly with an upper torso restraint that conforms to S7.1 and S7.2 of this standard and that adjusts by means of an emergency locking retractor that conforms with Standard No. 209 (49 CFR 571.209), which upper torso restraint may be detachable at the buckle, and, when the seat is in any position in which it can be occupied while the vehicle is in motion, have a Type 1 seat belt or the pelvic portion of a Type 2 seat belt assembly that conforms to S7.1 and S7.2 of this standard. S4.4.3.2.3 Any rear outboard designated seating position on a readily removable seat (that is, a seat designed to be easily removed and replaced by means installed by the manufacturer for that purpose) in a vehicle manufactured on or after September 1, 1992 shall meet the requirements of S4.4.3.2 and may use an upper torso belt that detaches at either its upper or lower anchorage point, but not both anchorage points, to meet those requirements. The means for detaching the upper torso belt shall not use any pushbutton action. S4.4.3.3 Each school bus with a gross vehicle weight rating of 10,000 pounds or less shall be equipped with an integral Type 2 seat belt assembly at the driver's designated seating position and at the right front passenger's designated seating position (if any), and with a Type 1 or Type 2 seat belt assembly at all other designated seating positions. Type 2 seat belt assemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 and S7.2 of this standard. The lap belt portion of a Type 2 seat belt assembly installed at the driver's designated seating position and at the right front passenger's designated seating position (if any) shall include either an emergency locking retractor or an automatic locking retractor, which retractor shall not retract webbing to the next locking position until at least 3/4 inch of webbing has moved into the retractor. In determining whether an automatic locking retractor complies with this requirement, the webbing is extended to 75 percent of its length and the retractor is locked after the initial adjustment. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension-relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. S4.5 Other general requirements. S4.5.1 Labeling and driver's manual information. Each vehicle shall have a label setting forth the manufacturer's recommended schedule for the maintenance or replacement, necessary to retain the performance required by this standard, of any crash deployed occupant protection system. The schedule shall be specified by month and year, or in terms of vehicle mileage, or by intervals measured from the date appearing on the vehicle certification label provided pursuant to 49 CFR Part 567. The label shall be permanently affixed to the vehicle within the passenger compartment and lettered in English in block capitals and numerals not less than three thirty-seconds of an inch high. Instructions concerning maintenance or replacement of the system and a description of the functional operation of the system shall be provided with each vehicle, with an appropriate reference on the label. If a vehicle owner's manual is provided, this information shall be included in the manual. S4.5.2 Readiness indicator. An occupant protection system that deploys in the event of a crash shall have a monitoring system with a readiness indicator. The indicator shall monitor its own readiness and shall be clearly visible from the driver's designated seating position. A list of the elements of the system being monitored by the indicator shall be included with the information furnished in accordance with S4.5.1 but need not be included on the label. S4.5.3 Automatic belts. Except as provided in S4.5.3.1, a seat belt assembly that requires no action by vehicle occupants (hereinafter referred to as an 'automatic belt') may be used to meet the crash protection requirements of any option under S4. and in place of any seat belt assembly otherwise required by that option. S4.5.3.1 An automatic belt that provides only pelvic restraint may not be used pursuant to S4.5.3 to meet the requirements of an option that requires a Type 2 seat belt assembly. S4.5.3.2 An automatic belt, furnished pursuant to S4.5.3, that provides both pelvic and upper torso restraint may have either a detachable or nondetachable upper torso portion, notwithstanding provisions of the option under which it is furnished. S4.5.3.3 An automatic belt furnished pursuant to S4.5.3 shall: (a) Conform to S7.1 and have a single emergency release mechanism whose components are readily accessible to a seated occupant. (b) In place of a warning system that conforms to S7.3 of this standard, be equipped with the following warning system: At the left front designated seating position (driver's position), a warning system that activates a continuous or intermittent audible signal for a period of not less than 4 seconds and not more than 8 seconds and that activates a continuous or flashing warning light visible to the driver for not less than 60 seconds (beginning when the vehicle ignition switch is moved to the 'on' or the 'start' position) when condition (A) exists simultaneously with condition (B), and that activates a continuous or flashing warning light, visible to the driver, displaying the identifying symbol for the seat belt telltale shown in Table 2 of Standard No. 101 (49 CFR 571.101), or, at the option of the manufacturer if permitted by Standard No. 101, displaying the words 'Fasten Seat Belts' or 'Fasten Belts,' for as long as condition (A) exists simultaneously with condition (C). (A) The vehicle's ignition switch is moved to the 'on' position or to the 'start' position. (B) The driver's automatic belt is not in use, as determined by the belt latch mechanism not being fastened, or, if the automatic belt is non-detachable, by the emergency release mechanism being in the released position. In the case of motorized automatic belts, the determination of use shall be made once the belt webbing is in its locked protective mode at the anchorage point. (C) The belt webbing of a motorized automatic belt system is not in its locked, protective mode at the anchorage point. S4.5.3.4 An automatic belt furnished pursuant to S4.5.3 that is not required to meet the perpendicular frontal crash protection requirements of S5.1 shall conform to the webbing, attachment hardware, and assembly performance requirements of Standard No. 209. S4.6 Dynamic testing of manual belt systems. S4.6.1 If the automatic restraint requirement of S4.1.4 is rescinded pursuant to S4.1.5, then each passenger car that is manufactured after September 1, 1989, and is equipped with a Type 2 manual seat belt assembly at each front outboard designated seating position pursuant to S4.1.2.3 shall meet the frontal crash protection requirements of S5.1 at those designated seating positions with a test dummy restrained by a Type 2 seat belt assembly that has been adjusted in accordance with S7.4.2. A vehicle shall not be deemed to be in noncompliance with this standard if its manufacturer establishes that it did not have reason to know in the exercise of due care that such vehicle is not in conformity with the requirement of this standard. S4.6.2 Each truck and multipurpose passenger vehicle with a GVWR of 8,500 pounds or less and an unloaded weight of less than 5,500 pounds that is manufactured on or after September 1, 1991, and is equipped with a Type 2 seat belt assembly at a front outboard designated seating position pursuant to S4.1.2.3 shall meet the frontal crash protection requirements of S5.1 at those designated seating positions with a test dummy restrained by a Type 2 seat belt assembly that has been adjusted in accordance with S7.4.2. A vehicle shall not be deemed to be in noncompliance with this standard if its manufacturer establishes that it did not have reason to know in the exercise of due care that such vehicle is not in conformity with the requirement of this standard. S4.6.3 A Type 2 seat belt assembly subject to the requirements of S4.6.1 or S4.6.2 of this standard does not have to meet the requirements of S4.2(a)-(c) and S4.4 of Standard No. 209 (49 CFR 571.209) of this part. S5. Occupant crash protection requirements. S5.1 Vehicles subject to S5.1 shall comply with either S5.1(a) or S5.1(b), or any combination thereof, at the manufacturer's option; except that vehicles manufactured before September 1, 1993 that comply with the requirements of S4.1.2.1(a) by means not including any type of seat belt or inflatable restraint shall comply with S5.1(a). (a) Impact a vehicle traveling longitudinally forward at any speed, up to and including 30 mph, into a fixed collision barrier that is perpendicular to the line of travel of the vehicle, or at any angle up to 30 degrees in either direction from the perpendicular to the line of travel of the vehicle under the applicable conditions of S8. The test dummy specified in S8.1.8.1 placed at each front outboard designated seating position shall meet the injury criteria of S6.1.1, 6.1.2., 6.1.3, and 6.1.4. (b) Impact a vehicle traveling longitudinally forward at any speed, up to and including 30 mph, into a fixed collision barrier that is perpendicular to line of travel of the vehicle, or at any angle up to 30 degrees in either direction from the perpendicular to the line of travel of the vehicle, under the applicable conditions of S8. The test dummy specified in S8.1.8.2 placed at each front outboard designated seating position shall meet the injury criteria of S6.2.1, 6.2.2., 6.2.3, 6.2.4, and 6.2.5. S5.2 Lateral moving barrier crash test. S5.2.1 Vehicles subject to S5.2 shall comply with either S5.2.1(a) or S5.2.1(b), or any combination thereof, at the manufacturer's option; except that vehicles manufactured before September 1, 1993 that comply with the requirements of S4.1.2.1(c) by means not including any type of seat belt or inflatable restraint shall comply with S5.2.1(a). (a) Impact a vehicle laterally on either side by a barrier moving at 20 mph under the applicable conditions of S8. The test dummy specified in S8.1.8.1 placed at the front outboard designated seating position adjacent to the impacted side shall meet the injury criteria of S6.1.2 and S6.1.3. (b) When the vehicle is impacted laterally under the applicable conditions of S8, on either side by a barrier moving at 20 mph, with a test device specified in S8.1.8.2, which is seated at the front outboard designated seating position adjacent to the impacted side, it shall meet the injury criteria of S6.2.2, and S6.2.3. S5.3 Rollover. Subject a vehicle to a rollover test under the applicable condition of S8 in either lateral direction at 30 mph with either, at the manufacturer's option, a test dummy specified in S8.1.8.1 or S8.1.8.2, placed in the front outboard designated seating position on the vehicle's lower side as mounted on the test platform. The test dummy shall meet the injury criteria of either S6.1.1. or S6.2.1. S6. Injury criteria. S6.1 Injury criteria for the Part 572, Subpart B, 50th percentile Male Dummy. S6.1.1 All portions of the test dummy shall be contained within the outer surfaces of the vehicle passenger compartment throughout the test. S6.1.2 The resultant acceleration at the center of gravity of the head shall be such that the expression: *** ILLUSTRATION OMITTED *** shall not exceed 1,000 where a is the resultant acceleration expressed as a multiple of g (the acceleration of gravity), and t (INFERIOR 1) and t (INFERIOR 2) are any two points in time during the crash of the vehicle which are separated by not more than a 36 millisecond time interval. S6.1.3 The resultant acceleration at the center of gravity of the upper thorax shall not exceed 60 g's, except for intervals whose cumulative duration is not more than 3 milliseconds. S6.1.4 The compressive force transmitted axially through each upper leg shall not exceed 2250 pounds. S6.2 Injury Criteria for the Part 572, Subpart E, Hybrid III Test Dummy. S6.2.1 All portions of the test dummy shall be contained within the outer surfaces of the vehicle passenger compartment throughout the test. S6.2.2 The resultant acceleration at the center of gravity of the head shall be such that the expression: *** ILLUSTRATION OMITTED *** shall not exceed 1,000 where a is the resultant acceleration expressed as a multiple of g (the acceleration of gravity), and t (INFERIOR 1) and t (INFERIOR 2) are any two ps in time during the crash of the vehicle which are separated by not more than a 36 millisecond time interval. S6.2.3 The resultant acceleration calculated from the output of the thoracic instrumentation shown in drawing 78051-218, revision R incorporated by reference in Part 572, Subpart E of this chapter shall not exceed 60g's, except for intervals whose cumulative duration is not more than 3 milliseconds. S6.2.4 Compression deflection of the sternum relative to the spine, as determined by instrumentation shown in drawing 78051-317, revision A incorporated by reference in Part 572, Subpart E of this chapter, shall not exceed 3 inches. S6.2.5 The force transmitted axially through each upper leg shall not exceed 2250 pounds. S7. Seat belt assembly requirements. S7.1 Adjustment. S7.1.1 Except as specified in S7.1.1.1 and S7.1.1.2, the lap belt of any seat belt assembly furnished in accordance with S4.1.2 shall adjust by means of any emergency-locking or automatic-locking retractor that conforms to Sec. 571.209 to fit persons whose dimensions range from those of a 50th percentile 6-year-old child to those of a 95th percentile adult male and the upper torso restraint shall adjust by means of an emergency-locking retractor or a manual adjusting device that conforms to Sec. 571.209 to fit persons whose dimensions range from those of a 5th percentile adult female to those of a 95th percentile adult male, with the seat in any position, the seat back in the manufacturer's nominal design riding position, and any adjustable anchorages adjusted to the manufacturer's nominal design position for a 50th percentile adult male occupant. However, an upper torso restraint furnished in accordance with S4.1.2.3.1(a) shall adjust by means of an emergency-locking retractor that conforms to Sec. 571.209. S7.1.1.1 A seat belt assembly installed at the driver's seating position shall adjust to fit persons whose dimensions range from those of a 5th-percentile adult female to those of a 95th-percentile adult male. S7.1.1.2 (a) A seat belt assembly installed in a motor vehicle other than a forward control vehicle at any designated seating position other than the outboard positions of the front and second seats shall adjust either by a retractor as specified in S7.1.1 or by a manual adjusting device that conforms to Sec. 571.209. (b) A seat belt assembly installed in a forward control vehicle at any designated seating position other than the front outboard seating positions shall adjust either by a retractor as specified in S7.1.1 or by a manual adjusting device that conforms to Sec. 571.209. S7.1.1.3 (a) Except as provided in S7.1.1.3(b), a Type 1 lap belt or the lap belt portion of any Type 2 belt installed at any front outboard designated seating position for compliance with this standard in a vehicle (other than walk-in van-type vehicles) manufactured on or after September 1, 1986, shall meet the requirements of S7.1 by means of an emergency-locking retractor that conforms to Standard No. 209 (Sec. 571.209). (b) The requirements of S7.1.1.3(a) do not apply to the lap belt portion of any Type 2 belt installed in a passenger car manufactured before September 1, 1989, or the walk-in van-type vehicles. S7.1.1.4 Notwithstanding the other provisions of S7.1 - S7.1.1.3, emergency-locking retractors on belt assemblies located in positions other than front outboard designated seating postions may be equipped with a manual webbing adjustment device capable of causing the retractor that adjusts the lap belt to lock when the belt is buckled. S7.1.2 The intersection of the upper torso belt with the lap belt in any Type 2 seat belt assembly furnished in accordance with S4.1.1 or S4.1.2, with the upper torso manual adjusting device, if provided, adjusted in accordance with the manufacturer's instructions, shall be at least 6 inches from the front vertical centerline of a 50th-percentile adult male occupant, measured along the centerline of the lap belt, with the seat in its rearmost and lowest adjustable position and with the seat back in the manufacturer's nominal design riding position. S7.1.3 The weights and dimensions of the vehicle occupants referred to in this standard are as follows: –––––––––––––––––––––––––––––––––––––– Weight 50th-percentile 6-year old child: 47.3 pounds 5th-percentile adult female: 102 pounds 50th-percentile adult male: 164 pounds () 3 95th-percentile adult male: 215 pounds. Erect sitting height 50th-percentile 6-year old child: 25.4 inches 5th-percentile adult female: 30.9 inches 50th-percentile adult male: 35.7 inches () .1 95th-percentile adult male: 38 inches. Hip breadth (sitting) 50th-percentile 6-year old child: 8.4 inches 5th-percentile adult female: 12.8 inches 50th-percentile adult male: 14.7 inches () .7 95th-percentile adult male: 16.5 inches. Hip circumference (sitting) 50th-percentile 6-year old child: 23.9 inches 5th-percentile adult female: 36.4 inches 50th-percentile adult male: 42 inches 95th-percentile adult male: 47.2 inches. Waist circumference (sitting) 50th-percentile 6-year old child: 20.8 inches 5th-percentile adult female: 23.6 inches 50th-percentile adult male: 32 inches () .6 95th-percentile adult male: 42.5 inches. Chest depth 50th-percentile 6-year old child: 5th-percentile adult female: 7.5 inches 50th-percentile adult male: 9.3 inches () .2 95th-percentile adult male: 10.5 inches. Chest circumference: (nipple) 50th-percentile 6-year old child: 5th-percentile adult female: 30.5 inches 50th-percentile adult male: 95th-percentile adult male: (upper) 50th-percentile 6-year old child: 5th-percentile adult female: 29.8 inches 50th-percentile adult male: 37.4 inches () .6 95th-percentile adult male: 44.5 inches. (lower) 50th-percentile 6-year old child: 5th-percentile adult female: 26.6 inches 50th-percentile adult male: 95th-percentile adult male: –––––––––––––––––––––––––––––––––––––– S7.2 Latch mechanism. A seat belt assembly installed in any vehicle, except an automatic belt assembly, shall have a latch mechanism - (a) Whose components are accessible to a seated occupant in both the stowed and operational positions; (b) That releases both the upper torso restraint and the lap belt simultaneously, if the assembly has a lap belt and an upper torso restraint that require unlatching for release of the occupant; and (c) That releases at a single point by a pushbutton action. S7.3 A seat belt assembly provided at the driver's seating position shall be equipped with a warning system that activates, for a period of not less than 4 seconds and not more than 8 seconds (beginning when the vehicle ignition switch is moved to the 'on' or the 'start' position), a continuous or flashing warning light, visible to the driver, displaying the identifying symbol for the seat belt telltale shown in Table 2 of FMVSS 101 or, at the option of the manufacturer if permitted by FMVSS 101, displaying the words 'Fasten Seat Belts' or 'Fasten Belts', when condition (a) exists, and a continuous or intermittent audible signal when condition (a) exists simultaneously with condition (b). (a) The vehicle's ignition switch is moved to the 'on' position or to the 'start' position. (b) The driver's lap belt is not in use, as determined, at the option of the manufacturers, either by the belt latch mechanism not being fastened, or by the belt not being extended at least 4 inches from its stowed position. S7.4 Seat belt comfort and convenience. (a) Automatic seat belts. Automatic seat belts installed in any vehicle, other than walk-in van-type vehicles, which has a gross vehicle weight rating of 10,000 pounds or less, and which is manufactured on or after September 1, 1986, shall meet the requirements of S7.4.1, S7.4.2, and S7.4.3. (b) Manual seat belts. (1) Vehicles manufactured after September 1, 1986. Manual seat belts installed in any vehicle, other than manual Type 2 belt systems installed in the front outboard seating positions in passenger cars or manual belts in walk-in van-type vehicles, which have a gross vehicle weight rating of 10,000 pounds or less, shall meet the requirements of S7.4.3, S7.4.4, S7.4.5, and S7.4.6. (2) Vehicles manufactured after September 1, 1989. (i) If the automatic restraint requirement of S4.1.4 is rescinded pursuant to S4.1.5, then manual seat belts installed in a passenger car shall meet the requirements of S7.1.1.3(a), S7.4.2, S7.4.3, S7.4.4, S7.4.5, and S7.4.6. (ii) Manual seat belts installed in a bus, multipurpose passenger vehicle and truck with a gross vehicle weight rating of 10,000 pounds or less, except for walk-in van-type vehicles, shall meet the requirements of S7.4.3, S7.4.4, S7.4.5, and S7.4.6. S7.4.1 Convenience hooks. Any manual convenience hook or other device that is provided to stow seat belt webbing to facilitate entering or exiting the vehicle shall automatically release the webbing when the automatic belt system is otherwise operational and shall remain in the released mode for as long as (a) exists simultaneously with (b), or, at the manufacturer's option, for as long as (a) exists simultaneously with (c) - (a) The vehicle ignition switch is moved to the 'on' or 'start' position; (b) The vehicle's drive train is engaged; (c) The vehicle's parking brake is in the released mode (nonengaged). S7.4.2 Webbing tension-relieving device. Each vehicle with an automatic seat belt assembly or with a Type 2 manual seat belt assembly that must meet the occupant crash protection requirements of S5.1 of this standard installed at a front outboard designated seating position, and each vehicle with a Type 2 manual seat belt assembly installed at a rear outboard designated seating position in compliance with a requirement of this standard, that has either automatic or manual tension-relieving devices permitting the introduction of slack in the webbing of the shoulder belt (e.g., 'comfort clips' or 'window-shade' devices) shall: (a) Comply with the requirements of S5.1 with the shoulder belt webbing adjusted to introduce the maximum amount of slack recommended by the vehicle manufacturer pursuant to S7.4.2(b). (b) Have a section in the vehicle owner's manual that explains how the tension-relieving device works and specifies the maximum amount of slack (in inches) recommended by the vehicle manufacturer to be introduced into the shoulder belt under normal use conditions. The explanation shall also warn that introducing slack beyond the amount specified by the manufacturer could significantly reduce the effectiveness of the shoulder belt in a crash; and (c) Have, except for open-body vehicles with no doors, an automatic means to cancel any shoulder belt slack introduced into the belt system by a tension-relieving device. In the case of an automatic safety belt system, cancellation of the tension-relieving device shall occur each time the adjacent vehicle door is opened. In the case of a manual seat belt required to meet S5.1, cancellation of the tension-relieving device shall occur, at the manufacturer's option, either each time the adjacent door is opened or each time the latchplate is released from the buckle. In the case of a Type 2 manual seat belt assembly installed at a rear outboard designated seating position, cancellation of the tension-relieving device shall occur, at the manufacturer's option either each time the door designed to allow the occupant of that seating position entry and egress of the vehicle is opened or each time the latchplate is released from the buckle. In the case of open-body vehicles with no doors, cancellation of the tension-relieving device may be done by a manual means. S7.4.3 Belt contact force. Except for manual or automatic seat belt assemblies that incorporate a webbing tension-relieving device, the upper torso webbing of any seat belt assembly shall not exert more than 0.7 pounds of contact force when measured normal to and one inch from the chest of an anthropomorphic test dummy, positioned in accordance with either S10 or S11 of this standard in the seating position for which that seat belt assembly is provided, at the point where the centerline of the torso belt crosses the midsagittal line on the dummy's chest. S7.4.4 Latchplate access. Any seat belt assembly latchplate that is located outboard of a front outboard seating position in accordance with S4.1.2 shall also be located within the outboard reach envelope of either the outboard arm or the inboard arm described in S10.6 of this standard and, in the case of a Part 572 Subpart B test dummy, Figure 3A of this standard, or, in the case of a Part 572 Subpart E test dummy, Figure 3B of this standard, when the latchplate is in its normal stowed position and any adjustable anchorages are adjusted to the manufacturer's nominal design position for a 50th percentile male occupant. There shall be sufficient clearance between the vehicle seat and the side of the vehicle interior to allow the test block defined in Figure 4 unhindered transit to the latchplate or buckle. S7.4.5 Retraction. When tested under the conditions of S8.1.2 and S8.1.3, with anthropomorphic test dummies whose arms have been removed and which are positioned in accordance with either S10 or S11, or any combination thereof, in the front outboard designated seating positions and restrained by the belt systems for those positions, the torso and lap belt webbing of any of those seat belt systems shall automatically retract to a stowed position either when the adjacent vehicle door is in the open position and the seat belt latchplate is released, or, at the option of the manufacturer, when the latchplate is released. That stowed position shall prevent any part of the webbing or hardware from being pinched when the adjacent vehicle door is closed. A belt system with a tension-relieving device in an open-bodied vehicle with no doors shall fully retract when the tension/relieving device is deactivated. For the purpose of the retraction requirement, outboard armrests, which are capable of being stowed, on vehicle seats shall be placed in their stowed positions. S7.4.6 Seat belt guides and hardware. S7.4.6.1 (a) Any manual seat belt assembly whose webbing is designed to pass through the seat cushion or between the seat cushion and seat back shall be designed to maintain one of the following three seat belt parts (the seat belt latchplate, the buckle, or the seat belt webbing) on top of or above the seat cushion under normal conditions (i.e., conditions other than when belt hardware is intentionally pushed behind the seat by a vehicle occupant). In addition, the remaining two seat belt parts must be accessible under normal conditions. (b) The requirements of S7.4.6.1(a) do not apply to: (1) seats whose seat cushions are movable so that the seat back serves a function other than seating, (2) seats which are removable, or (3) seats which are movable so that the space formerly occupied by the seat can be used for a secondary function. S7.4.6.2 The buckle and latchplate of a manual seat belt assembly subject to S7.4.6.1 shall not pass through the guides or conduits provided for in S7.4.6.1 and fall behind the seat when the events listed below occur in the order specified: (a) The belt is completely retracted or, if the belt is nonretractable, the belt is unlatched; (b) the seat is moved to any position to which it is designed to be adjusted; and (c) the seat back, if foldable, is folded forward as far as possible and then moved backward into position. The inboard receptacle end of a seat belt assembly installed at a front outboard designated seating position shall be accessible with the center arm rest in any position to which it can be adjusted (without having to move the armrest). S8. Test conditions. S8.1 General conditions. The following conditions apply to the frontal, lateral, and rollover tests. S8.1.1 Except as provided in paragraph (c) of this section, the vehicle, including test devices and instrumentation is loaded as follows: (a) Passenger cars. A passenger car is loaded to its unloaded vehicle weight plus its rated cargo and luggage capacity weight, secured in the luggage area, plus the weight of the necessary anthropomorphic test devices. (b) Multipurpose passenger vehicles, trucks, and buses. A multipurpose passenger vehicle, truck, or bus is loaded to its unloaded vehicle weight plus 300 pounds or its rated cargo and luggage capacity weight, whichever is less, secured in the load carrying area and distributed as nearly as possible in proportion to its gross axle weight ratings, plus the weight of the necessary anthropomorphic test devices. (c) Fuel system capacity. With the test vehicle on a level surface, pump the fuel from the vehicle's fuel tank and then operate the engine until it stops. Then, add Stoddard solvent to the test vehicle's fuel tank in an amount which is equal to not less than 92 and not more than 94 percent of the fuel tank's usable capacity stated by the vehicle's manufacturer. In addition, add the amount of Stoddard solvent needed to fill the entire fuel system from the fuel tank through the engine's induction system. (d) Vehicle test attitude. Determine the distance between a level surface and a standard reference point on the test vehicle's body, directly above each wheel opening, when the vehicle is in its 'as delivered' condition. The 'as delivered' condition is the vehicle as received at the test site, with 100 percent of all fluid capacities and all tires inflated to the manufacturer's specifications as listed on the vehicle's tire placard. Determine the distance between the same level surface and the same standard reference points in the vehicle's 'fully loaded condition.' The 'fully loaded condition' is the test vehicle loaded in accordance with S8.1.1 (a) or (b), as applicable. The load placed in the cargo area shall be center over the longitudinal centerline of the vehicle. The pretest vehicle attitude shall be equal to either the as delivered or fully loaded attitude or between the as delivered attitude and the fully loaded attitude. S8.1.2 Adjustable seats are in the adjustment position midway between the forwardmost and rearmost positions, and if separately adjustable in a vertical direction, are at the lowest position. If an adjustment position does not exist midway between the forwardmost and rearmost positions, the closest adjustment position to the rear of the midpoint is used. S8.1.3 Place adjustable seat backs in the manufacturer's nominal design riding position in the manner specified by the manufacturer. Place any adjustable anchorages at the manufacturer's nominal design position for a 50th percentile adult male occupant. Place each adjustable head restraint in its highest adjustment position. Adjustable lumbar supports are positioned so that the lumbar support is in its lowest adjustment position. S8.1.4 Adjustable steering controls are adjusted so that the steering wheel hub is at the geometric center of the locus it describes when it is moved through its full range of driving positions. S8.1.5 Movable vehicle windows and vents are, at the manufacturer's option, placed in the fully closed position. S8.1.6 Convertibles and open-body type vehicles have the top, if any, in place in the closed passenger compartment configuration. S8.1.7 Doors are fully closed and latched but not locked. S8.1.8 Anthropomorphic test dummies. S8.1.8.1 The anthropomorphic test dummies used for evaluation of occupant protection systems manufactured pursuant to applicable portions of paragraphs S4.1.2, 4.1.3, and S4.1.4 shall conform to the requirements of Subpart B of Part 572 of this Chapter. S8.1.8.2 Anthropomorphic test devices used for the evaluation of occupant protection systems manufactured pursuant to applicable portions of paragraphs S4.1.2, S4.1.3, and S4.1.4 shall conform to the requirements of Subpart E of Part 572 of this Chapter. S8.1.9.1 Each Part 572, Subpart B test dummy specified in S8.1.8.1 is clothed in formfitting cotton stretch garments with short sheeves and midcalf length pants. Each foot of the test dummy is equipped with a size 11EE shoe which meets the configuration size, sole, and heel thickness specifications of MIL-S 131192 and weighs 1.25 () 0.2 pounds. S8.1.9.2 Each Part 572, Subpart E test dummy specified in S8.1.8.2 is clothed in formfitting cotton stretch garments with short sleeves and midcalf length pants specified in drawings 78051-292 and -293 incorporated by reference in Part 572, Subpart E of this chapter, respectively or their equivalents. A size 11EE shoe specified in drawings 78051-294 (left) and 78051-295 (right) or their equivalents is placed on each foot of the test dummy. S8.1.10 Limb joints are set at lg, barely restraining the weight of the limb when extended horizontally. Leg joints are adjusted with the torso in the supine position. S8.1.11 Instrumentation does not affect the motion of dummies during impact or rollover. S8.1.12 Temperature of the test dummy. S8.1.12.1 The stabilized temperature of the test dummy specified by S8.1.8.1 is at any level between 66 degrees F and 78 degrees F. S8.1.12.2 The stabilized temperature of the test dummy specified by S8.1.8.2 is at any level between 69 degrees F and 72 degrees F. S8.2 Lateral moving barrier crash test conditions. The following conditions apply to the lateral moving barrier crash test. S8.2.1 The moving barrier, including the impact surface, supporting structure, and carriage, weighs 4,000 pounds. S8.2.2 The impact surface of the barrier is a vertical, rigid, flat rectangle, 78 inches wide and 60 inches high, perpendicular to its direction of movement, with its lower edge horizontal and 5 inches above the ground surface. S8.2.3 During the entire impact sequence the barrier undergoes no significant amount of dynamic or static deformation, and absorbs no significant portion of the energy resulting from the impact, except for energy that results in translational rebound movement of the barrier. S8.2.4 During the entire impact sequence the barrier is guided so that it travels in a straight line, with no significant lateral, vertical or rotational movement. S8.2.5 The concrete surface upon which the vehicle is tested is level, rigid and of uniform construction, with a skidnumber of 75 when measured in accordance with American Society for Testing and Materials Method E-274-65T at 40 m.p.h., omitting water delivery as specified in paragraph 7.1 of that method. S8.2.6 The tested vehicle's brakes are disengaged and the transmission is in neutral. S8.2.7 The barrier and the test vehicle are positioned so that at impact - (a) The vehicle is at rest in its normal attitude; (b) The barrier is traveling in a direction perpendicular to the longitudinal axis of the vehicle at 20 m.p.h.; and (c) A vertical plane through the geometric center of the barrier impact surface and perpendicular to that surface passes through the driver's seating reference point in the tested vehicle. S8.3 Rollover test conditions. The following conditions apply to the rollover test. S8.3.1 The tested vehicle's brakes are disengaged and the transmission is in neutral. S8.3.2 The concrete surface on which the test is conducted is level, rigid, of uniform construction, and of a sufficient size that the vehicle remains on it throughout the entire rollover cycle. It has a skid number of 75 when measured in accordance with American Society for Testing and Materials Method E-274-65T at 40 m.p.h. omitting water delivery as specified in paragraph 7.1 of that method. S8.3.3 The vehicle is placed on a device, similar to that illustrated in Figure 2, having a platform in the form of a flat, rigid plane at an angle of 23 degrees from the horizontal. At the lower edge of the platform is an unyielding flange, perpendicular to the platform with a height of 4 inches and a length sufficient to hold in place the tires that rest against it. The intersection of the inner face of the flange with the upper face of the platform is 9 inches above the rollover surface. No other restraints are used to hold the vehicle in position during the deceleration of the platform and the departure of the vehicle. *** ILLUSTRATION OMITTED *** S8.3.4 With the vehicle on the test platform, the test devices remain as nearly as possible in the posture specified in S8.1. S8.3.5 Before the deceleration pulse, the platform is moving horizontally, and perpendicularly to the longitudinal axis of the vehicle, at a constant speed of 30 m.p.h. for a sufficient period of time for the vehicle to become motionless relative to the platform. S8.3.6 The platform is decelerated from 30 to 0 m.p.h. in a distance of not more than 3 feet, without change of direction and without transverse or rotational movement during the deceleration of the platform and the departure of the vehicle. The deceleration rate is at least 20g for a minimum of 0.04 seconds. S9. Pressure vessels and explosive devices. S9.1 Pressure vessels. A pressure vessel that is continuously pressurized shall conform to the requirements of Sec.78.65-2, 178.65-6(b), 178.65-7, 178.65-9 (a) and (b), and 178.65-10 of this title. It shall not leak or evidence visible distortion when tested in accordance with Sec. 178.65-11(a) of this title and shall not fail in any of the ways enumerated in Sec. 178.65-11(b) of this title when hydrostatically tested to destruction. It shall not crack when flattened in accordance with Sec. 178.65-12(a) of this title to the limit specified in Sec. 178.65-12(a)(4) of this title. S9.2 Explosive devices. An explosive device shall not exhibit any of the characteristics prohibited by Sec. 173.51 of this title. All explosive material shall be enclosed in a structure that is capable of containing the explosive energy without sudden release of pressure except through overpressure relief devices or parts designed to release the pressure during actuation. S10. Test dummy positioning procedures. Position a test dummy, conforming to Subpart B of Part 572 of this chapter, in each front outboard seating position of a vehicle as set forth below in S10 through S10.9. Each test dummy is restrained during the crash tests of S5 as follows: (a) In a vehicle equipped with automatic restraints at each front outboard designated seating position that is certified by its manufacturer as meeting the requirements of S4.1.2.1 (a) and (c)(1), each test dummy is not restrained during the frontal test of S5.1, the lateral test of S5.2 and the rollover test of S5.3 by any means that requires occupant action. (b)(1) In a vehicle equipped with an automatic restraint at each front outbound seating position that is certified by its manufacturer as meeting the requirements of S4.1.2.1 (a) and (c)(2), each test dummy is not restrained during one frontal test of S5.1 by any means that require occupant action. If the vehicle has a manual seat belt provided by the manufacturer to comply with the requirements of S4.1.2.1(c), then a second frontal test is conducted in accordance with S5.1 and each test dummy is restrained both by the automatic restraint system and the manual seat belt, adjusted in accordance with S10.9. (2) In a vehicle equipped with an automatic restraint only at the driver's designated seating position, pursuant to S4.1.3.4(a)(2), that is certified by its manufacturer as meeting the requirements of S4.1.2.1(a) and (c)(2), the driver test dummy is not restrained during one frontal test of S5.1 by any means that require occupant action. If the vehicle also has a manual seat belt provided by the manufacturer to comply with the requirements of S4.1.2.1(c), then a second frontal test is conducted in accordance with S5.1 and the driver test dummy is restrained both by the automatic restraint system and the manual seat belt, adjusted in accordance with S10.9. At the option of the manufacturer, a passenger test dummy can be placed in the right front outboard designated seating position during the testing required by this section. If a passenger test dummy is present, it shall be restrained by a manual seat belt, adjusted in accordance with S10.9. (c) In a vehicle equipped with a manual belt at the front outboard designated seating positions that is certified by its manufacturer to meet the requirements of S4.6, each test dummy is restrained by the manual safety belts, adjusted in accordance with S10.9, installed at each front outboard seating positions. S10.1 Vehicle equipped with front bucket seats. Place the test dummy's torso against the seat back and its upper legs against the seat cushion to the extent permitted by placement of the test dummy's feet in accordance with the appropriate paragraph of S10. Center the test dummy on the seat cushion of the bucket seat and set its midsagittal plane so that it is vertical and parallel to the centerline of the seat cushion. S10.1.1 Driver position placement. (a) Initially set the knees of the test dummy 14 1/2 inches apart, measured between the outer surfaces of the knee pivot bolt heads, with the left outer surface 5.9 inches from the midsagittal plane of the test dummy. (b) Rest the right foot of the test dummy on the undepressed accelerator pedal with the rearmost point of the heel on the floor pan in the plane of the pedal. If the foot cannot be placed on the accelerator pedal, set it initially perpendicular to the lower leg and place it as far forward as possible in the direction of the pedal centerline with the rearmost point of the heel resting on the floor pan. Except as prevented by contact with a vehicle surface, place the right leg so that the upper and lower leg centerlines fall, as close as possible, in a vertical plane without inducing torso movement. (c) Place the left foot on the toeboard with the rearmost point of the heel resting on the floor pan as close as possible to the point of intersection of the planes described by the toeboard and the floor pan and not on the wheelwell projection. If the foot cannot be positioned on the toeboard, set it initially perpendicular to the lower leg and place it as far forward as possible with the heel resting on the floor pan. If necessary to avoid contact with the vehicle's brake or clutch pedal, rotate the test dummy's left foot about the lower leg. If there is still pedal interference, rotate the left leg outboard about the hip the minimum distance necessary to avoid the pedal interference. Except as prevented by contact with a vehicle surface, place the left leg so that the upper and lower leg centerlines fall, as close as possible, in a vertical plane. For vehicles with a foot rest that does not elevate the left foot above the level of the right foot, place the left foot on the foot rest so that the upper and lower leg centerlines fall in a vertical plane. S10.1.2 Passenger position placement. S10.1.2.1 Vehicles with a flat floor pan/toeboard. (a) Initially set the knees 11 3/4 inches apart, measured between the outer surfaces of the knee pivot bolt heads. (b) Place the right and left feet on the vehicle's toeboard with the heels resting on the floor pan as close as possible to the intersection point with the toeboard. If the feet cannot be placed flat on the toeboard, set them perpendicular to the lower leg centerlines and place them as far forward as possible with the heels resting on the floor pan. (c) Place the right and left legs so that the upper and lower leg centerlines fall in vertical longitudinal planes. S10.1.2.2 Vehicles with wheelhouse projections in passenger compartment. (a) Initially set the knees 11 3/4 inches apart, measured between the outer surfaces of the knee pivot bolt heads. (b) Place the right and left feet in the well of the floor pan/toeboard and not on the wheelhouse projection. If the feet cannot be placed flat on the toeboard, initially set them perpendicular to the lower leg centerlines and then place them as far forward as possible with the heels resting on the floor pan. (c) If it is not possible to maintain vertical and longitudinal planes through the upper and lower leg centerlines for each leg, then place the left leg so that its upper and lower centerlines fall, as closely as possible, in a vertical longitudinal plane and place the right leg so that its upper and lower leg centerlines fall, as closely as possible, in a vertical plane. S10.2 Vehicle equipped with bench seating. Place the test dummy's torso against the seat back and its upper legs against the seat cushion, to the extent permitted by placement of the test dummy's feet in accordance with the appropriate paragraph of S10.1. S10.2.1 Driver position placement. Place the test dummy at the left front outboard designated seating position so that its midsagittal plane is vertical and parallel to the centerline of the vehicle and so that the midsagittal plane of the test dummy passes through the center of the steering wheel rim. Place the legs, knees, and feet of the test dummy as specified in S10.1.1. S10.2.2 Passenger position placement. Place the test dummy at the right front outboard designated seating position so that the midsagittal plane of the test dummy is vertical and longitudinal, and the same distance from the vehicle's longitudinal centerline as the midsagittal plane of the test dummy at the driver's position. Place the legs, knees, and feet of the test dummy as specified in S10.1.2. S10.3 Initial test dummy hand and arm placement. With the test dummy at its designated seating position as specified by the appropriate requirements of S10.1 or S10.2, place the upper arms against the seat back and tangent to the side of the upper torso. Place the lower arms and palms against the outside of the upper legs. S10.4 Test dummy settling. S10.4.1 Test dummy vertical upward displacement. Slowly lift the test dummy parallel to the seat back plane until the test dummy's buttocks no longer contact the seat cushion or until there is test dummy head contact with the vehicle's headlining. S10.4.2 Lower torso force application. Apply a rearward force of 50 pounds against the center of the test dummy's lower torso in a horizontal direction. The line of force application shall be 6 1/2 inches above the bottom surface of the test dummy's buttocks. S10.4.3 Test dummy vertical downward displacement. Remove as much of the 50 pound force as necessary to allow the test dummy to return downward to the seat cushion by its own weight. S10.4.4 Test dummy upper torso rocking. Apply a 10 to 15 pound horizontal rearward force to the test dummy's lower torso. Then apply a horizontal forward force to the test dummy's shoulders sufficient to flex the upper torso forward until its back no longer contacts the seat back. Rock the test dummy from side to side 3 or 4 times so that the test dummy's spine is at any angle from the vertical in the 14 to 16 degree range at the extremes of each rocking movement. S10.4.5 Test dummy upper torso force application. While maintaining the 10 to 15 pound horizontal rearward force applied in S10.4.4 and with the test dummy's midsagittal plane vertical, push the upper torso back against the seat back with a force of 50 pounds applied in a horizontal rearward direction along a line that is coincident with the test dummy's midsagittal plane and 18 inches above the bottom surface of the test dummy's buttocks. S10.5 Belt adjustment for dynamic testing. With the test dummy at its designated seating position as specified by the appropriate requirements of S8.1.2, S8.1.3 and S10.1 through S10.4, place and adjust the safety belt as specified below. S10.5.1 Manual safety belts. Place the Type 1 or Type 2 manual belt around the test dummy and fasten the latch. Pull the Type 1 belt webbing out of the retractor and allow it to retract; repeat this operation four times. Remove all slack from the lap belt portion of a Type 2 belt. Pull the upper torso webbing out of the retractor and allow it to retract; repeat this operation four times so that the excess webbing in the shoulder belt is removed by the retractive force of the retractor. Apply a 2 to 4 pound tension load to the lap belt of a single retractor system by pulling the upper torso belt adjacent to the latchplate. In the case of a dual retractor system, apply a 2 to 4 pound tension load by pulling the lap belt adjacent to its retractor. Measure the tension load as close as possible to the same location where the force was applied. After the tension load has been applied, ensure that the upper torso belt lies flat on the test dummy's shoulder. S10.5.2 Automatic safety belts. Ensure that the upper torso belt lies flat on the test dummy's shoulder after the automatic belt has been placed on the test dummy. S10.5.3 Belts with tension-relieving devices. If the automatic or dynamically-tested manual safety belt system is equipped with a tension-relieving device, introduce the maximum amount of slack into the upper torso belt that is recommended by the manufacturer for normal use in the owner's manual for the vehicle. S10.6 Placement of test dummy arms and hands. With the test dummy positioned as specified by S10.4 and without inducing torso movement, place the arms, elbows, and hands of the test dummy, as appropriate for each designated seating position in accordance with S10.6.1 or S10.6.2. Following placement of the arms, elbows and hands, remove the force applied against the lower half of the torso. S10.6.1 Driver's position. Move the upper and the lower arms of the test dummy at the driver's position to their fully outstretched position in the lowest possible orientation. Push each arm rearward permitting bending at the elbow, until the palm of each hand contacts the outer part of the rim of the steering wheel at its horizontal centerline. Place the test dummy's thumbs over the steering wheel rim and position the upper and lower arm centerlines as close as possible in a vertical plane without inducing torso movement. The thumbs shall be over the steering wheel rim and are lightly taped to the steering wheel rim so that if the hand of the test dummy is pushed upward by a force of not less than 2 pounds and not more than 5 pounds, the tape shall release the hand from the steering wheel rim. S10.6.2 Passenger position. Move the upper and the lower arms of the test dummy at the passenger position to the fully outstretched position in the lowest possible orientation. Push each arm rearward, permitting bending at the elbow, until the upper arm contracts the seat back and is tangent to the upper part of the side of the torso, the palm contacts the outside of the thigh, and the little finger is barely in contact with the seat cushion. S10.7 Repositioning of feet and legs. After the test dummy has been settled in accordance with S10.4, the safety belt system has been positioned, if necessary, in accordance with S10.5, and the arms and hands of the test dummy have been positioned in accordance with S10.6, reposition the feet and legs of the test dummy, if necessary, so that the feet and legs meet the applicable requirements of S10.1 or S10.2. S10.8 Test dummy positioning for latchplate access. The reach envelopes specified in S7.4.4 are obtained by positioning a test dummy in the driver's seat or passenger's seat in its forwardmost adjustment position. Attach the lines for the inboard and outboard arms to the test dummy as described in Figure 3 of this standard. Extend each line backward and outboard to generate the compliance arcs of the outboard reach envelope of the test dummy's arms. S10.9 Test dummy positioning for belt contact force. S10.9.1 Vehicles manufactured before September 1, 1987. To determine compliance with S7.4.3 of this standard, a manufacturer may use, at its option, either the test procedure of S10.9.1 or the test procedure of S10.9.2. Position the test dummy in the vehicle in accordance with the appropriate requirements specified in S10.1 or S10.2 and under the conditions of S8.1.2 and S8.1.3. Fasten the latch and pull the belt webbing three inches from the dummy's chest and release until the webbing is within one inch of the test dummy's chest and measure the belt contact force. S10.9.2 Vehicles manufactured on or after September 1, 1987. To determine compliance with S7.4.3 of this standard, position the test dummy in the vehicle in accordance with the appropriate requirements specified in S10.1 or S10.2 and under the conditions of S8.1.2 and S8.1.3. Close the vehicle's adjacent door, pull either 12 inches of belt webbing or the maximum available amount of belt webbing, whichever is less, from the retractor and then release it, allowing the belt webbing to return to the dummy's chest. Fasten the latch and pull the belt webbing three inches from the test dummy's chest and release until the webbing is within one inch of the test dummys chest and measure the belt contact force. S11. Positioning Procedure for the Part 572 Subpart E Test Dummy. S11.1 Head. The transverse instrumentation platform of the head shall be horizontal within 1/2 degree. To level the head of the test dummy, the following sequences must be followed. First, adjust the position of the H point within the limits set forth in S11.4.3.1 to level the transverse instrumentation platform of the head of the test dummy. If the transverse instrumentation platform of the head is still not level, then adjust the pelvic angle of the test dummy within the limits specified in S11.4.3.2 of this standard. If the transverse instrumentation platform of the head is still not level, then adjust the neck bracket of the dummy the minimum amount necessary from the non-adjusted '0' setting to ensure that the transverse instrumentation platform of the head is horizontal within 1/2 degree. The test dummy shall remain within the limits specified in S11.4.3.1 and S11.4.3.2 after any adjustment of the neck bracket. S11.2.1 The driver's upper arms shall be adjacent to the torso with the centerlines as close to a vertical plane as possible. S11.2.2 The passenger's upper arms shall be in contact with the seat back and the sides of torso. S11.3 Hands. S11.3.1 The palms of the driver test dummy shall be in contact with the outer part of the steering wheel rim at the rim's horizontal centerline. The thumbs shall be over the steering wheel rim and shall be lightly taped to the steering wheel rim so that if the hand of the test dummy is pushed upward by a force of not less than 2 pounds and not more than 5 pounds, the tape shall release the hand from the steering wheel rim. S11.3.2 The palms of the passenger test dummy shall be in contact with outside of thigh. The little finger shall be in contact with the seat cushion. S11.4 Torso. S11.4.1 In vehicles equipped with bench seats, the upper torso of the driver and passenger test dummies shall rest against the seat back. The midsagittal plane of the driver dummy shall be vertical and parallel to the vehicle's longitudinal centerline, and pass through the center of the steering wheel rim. The midsagittal plane of the passenger dummy shall be vertical and parallel to the vehicle's longitudinal centerline and the same distance from the vehicle's longitudinal centerline as the midsagittal plane of the driver dummy. S11.4.2 In vehicles equipped with bucket seats, the upper torso of the driver and passenger test dummies shall rest against the seat back. The midsagittal plane of the driver and the passenger dummy shall be vertical and shall coincide with the longitudinal centerline of the bucket seat. S11.4.3 Lower Torso. S11.4.3.1 H-point. The H-point of the driver and passenger test dummies shall coincide within 1/2 inch in the vertical dimension and 1/2 inch in the horizontal dimension of a point 1/4 inch below the position of the H-point determined by using the equipment and procedures specified in SAE J826 (Apr 80) except that the length of the lower leg and thigh segments of the H-point machine shall be adjusted to 16.3 and 15.8 inches, respectively, instead of the 50th percentile values specified in Table 1 of SAE J826. S11.4.3.2 Pelvic angle. As determined using the pelvic angle gage (GM drawing 78051-532 incorporated by reference in Part 572, Subpart E of this chapter) which is inserted into the H-point gaging hole of the dummy, the angle measured from the horizontal on the 3 inch flat surface of the gage shall be 22 1/2 degrees plus or minus 2 1/2 degrees. S11.5 Legs. S11.5.1 The legs of the driver and passenger test dummy shall be placed as provided in S11.5.2 or, at the option of the vehicle manufacturer until September 1, 1991, as provided in S10.1.1 for the driver and S10.1.2 for the passenger, except that the initial distance between the outboard knee clevis flange surfaces shall be 10.6 inches for both the driver and the passenger rather than 14 1/2 inches as specified in S10.1.1(a) for the driver and 11 3/4 inches as specified in S10.1.2.1(a) and S10 1.2.2(a) for the passenger. S11.5.2 The upper legs of the driver and passenger test dummies shall rest against the seat cushion to the extent permitted by placement of the feet. The initial distance between the outboard knee clevis flange surfaces shall be 10.6 inches. To the extent practicable, the left leg of the driver dummy and both legs of the passenger dummy shall be in vertical longitudinal planes. To the extent practicable, the right leg of the driver dummy shall be in a vertical plane. Final adjustment to accommodate placement of feet in accordance with S11.6 for various passenger compartment configurations is permitted. S11.6 Feet. The feet of the driver test dummy shall be positioned in accordance with S10.1.1 (b) and (c) of this standard. The feet of the passenger test dummy shall be positioned in accordance with S10.1.2.1 (b) and (c) or S10.1.2.2 (b) and (c) of this standard, as appropriate. S11.6.1 The feet of the driver test dummy shall be placed as required by S11.6.2 or, at the option of the vehicle manufacturer until September 1, 1991, as provided in S10.1.1. The feet of the passenger test dummy shall be placed as required by S11.6.3 or, at the option of the vehicle manufacturer until September 1, 1991, as provided in S10.1.2. S11.6.2 The right foot of the driver test dummy shall rest on the undepressed accelerator with the rearmost point of the heel on the floor surface in the plane of the pedal. If the foot cannot be placed on the accelerator pedal, it shall be positioned perpendicular to the tibia and placed as far forward as possible in the direction of the centerline of the pedal with the rearmost point of the heel resting on the floor surface. The heel of the left foot shall be placed as far forward as possible and shall rest on the floor pan. The left foot shall be positioned as flat as possible on the toeboard. The longitudinal centerline of the left foot shall be placed as parallel as possible to the longitudinal centerline of the vehicle. S11.6.3 The heels of both feet of the passenger test dummy shall be placed as far forward as possible and shall rest on the floor pan. Both feet shall be positioned as flat as possible on the toeboard. The longitudinal centerline of the feet shall be placed as parallel as possible to the longitudinal centerline of the vehicle. S11.7 Test dummy positioning for latchplate access. The reach envelopes specified in S7.4.4 are obtained by positioning a test dummy in the driver's seat or passenger's seat in its forwardmost adjustment position. Attach the lines for the inboard and outboard arms to the test dummy as described in Figure 3 of this standard. Extend each line backward and outboard to generate the compliance arcs of the outboard reach envelope of the test dummy's arms. S11.8 Test dummy positioning for belt contact force. To determine compliance with S7.4.3 of this standard, position the test dummy in the vehicle in accordance with the requirements specified in S11.1 through S11.6 and under the conditions of S8.1.2. and S8.1.3. Pull the belt webbing three inches from the test dummy's chest and release until the webbing is within 1 inch of the test dummy's chest and measure the belt contact force. S11.9 Manual belt adjustment for dynamic testing. With the test dummy at its designated seating position as specified by the appropriate requirements of S8.1.2, S8.1.3 and S11.1 through S11.6, place the Type 2 manual belt around the test dummy and fasten the latch. Remove all slack from the lap belt. Pull the upper torso webbing out of the retractor and allow it to retract; repeat this operation four times. Apply a 2 to 4 pound tension load to the lap belt. If the belt system is equipped with a tension-relieving device introduce the maximum amount of slack into the upper torso belt that is recommended by the manufacturer for normal use in the owner's manual for the vehicle. If the belt system is not equipped with a tension-relieving device, allow the excess webbing in the shoulder belt to be retracted by the retractive force of the retractor. Note: The concept of an occupant protection system which requires 'no action by vehicle occupants,' as that term is used in Standard No. 208, is intended to designate a system which will perform its protective restraining function after a normal process of ingress or egress without separate deliberate actions by the vehicle occupant to deploy the restraint system. Thus, the agency considers an occupant protection system to be automatic if an occupant has to take no action to deploy the system but would normally slightly push the seat belt webbing aside when entering or exiting the vehicle or would normally make a slight adjustment in the webbing for comfort. *** ILLUSTRATION OMITTED *** (36 FR 22902, Dec. 2, 1971) Editorial Note: For Federal Register citations affecting Sec. 571.208, see the List of CFR Sections Affected in the Finding Aids section of this volume. Effective Date Notes: ANTHROPOMORPHIC TEST DUMMIES; HYBRID III TEST DUMMY; MANUFACTURERS' OPTIONS FOR COMPLIANCE 1. At 51 FR 26688, July 25, 1986, a document was published amending Part 572 which adopted the Hybrid III test dummy (Subpart E) as an alternative to the Part 572 test dummy (Subpart B) in testing done pursuant to Standard No. 208. That document also revised paragraphs S5.1, S5.2, S5.3, S6, S8.1.8, S8.1.9, S8.1.12; added a sentence at the end of S8.1.3, and added S11 in Standard No. 208 so that effetive October 23, 1986 manufacturers have the option of using either the existing Part 572 test dummy (Subpart B) or the Hybrid III test dummy (Subpart E) until August 31, 1991. As of September 1, 1991, the Hybrid III will replace the Part 572 test dummy and be used as the exclusive means of determining a vehicle's conformance with the performance requirements of Standard No. 208. 2. Amendments were made to Sec. 571.208 at 52 FR 44908, Nov. 23, 1987. Multipurpose passenger vehicles and trucks with a gross vehicle weight rating of 8,500 pounds or less and an unloaded vehicle weight of 5,500 pounds or less must comply with the dynamic testing requirements of S4.6 of Standard No. 208 beginning on September 1, 1991. 3. At 55 FR 30914, July 30, 1990, Sec. 571.208 was amended by revising S4.1.4.2(b), adding a new (c), revising S4.1.4.2.2, S4.2.4 introductory text, S4.2.4.3, S4.4.3.2 and S4.4.3.2.3, effective January 28, 1991. For the convenience of the user, the superseded text follows: Sec. 571.208 Standard No. 208; Occupant crash protection. * * * * * S4.1.4.2 (a) * * * (b) Except as provided in S4.1.4.2.1, each passenger car other than a convertible manufactured on or after September 1, 1990 and each convertible passenger car manufactured on or after September 1, 1991 shall be equipped with an integral Type 2 seat belt assembly at every forward-facing rear outboard designated seating position. Type 2 seat belt assemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 and S7.2 of this standard. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension-relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. * * * * * S4.1.4.2.2 Any rear outboard designated seating position with a readily removable seat (that is, a seat designed to be easily removed and replaced by means installed by the manufacturer for that purpose) shall meet the requirements of S4.1.4.2. and may use an upper torso belt that detaches, at the upper anchorage point to meet those requirements. * * * * * S4.2.4 Trucks and multipurpose passenger vehicles manufactured on or after September 1, 1991 with a GVWR of 10,000 pounds or less. Except as provided in S4.2.4.2, each truck and each multipurpose passenger vehicle, except a motor home, manufactured on or after September 1, 1991 that has a gross vehicle weight rating of 10,000 pounds or less shall be equipped with an integral Type 2 seat belt assembly at every forward-facing rear outboard designated seating position. Type 2 seat belt assemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 and S7.2 of this standard. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension-relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. * * * * * S4.2.4.3 Any rear outboard designated seating position with a readily removable seat (that is, a seat designed to be easily removed and replaced by means installed by the manufacturer for that purpose) shall meet the requirements of S4.2.4, and may use an upper torso belt that detaches at the upper anchorage point to meet those requirements. * * * * * S4.4.3.2 Except as provided in S4.4.3.2.2, each bus with a gross vehicle weight rating of 10,000 pounds or less, except a school bus, shall be equipped with an integral Type 2 seat belt assembly at the driver's designated seating position and at the front and every rear forward-facing outboard designated seating position, and with a Type 1 or Type 2 seat belt assembly at all other designated seating positions. Type 2 seat belt assemblies installed in compliance with this requirement shall comply with Standard No. 209 (49 CFR 571.209) and with S7.1 and S7.2 of this standard. If a Type 2 seat belt assembly installed in compliance with this requirement incorporates any webbing tension-relieving device, the vehicle owner's manual shall include the information specified in S7.4.2(b) of this standard for the tension-relieving device, and the vehicle shall comply with S7.4.2(c) of this standard. * * * * * S4.4.3.2.3 Any rear outboard designated seating position with a readily removable seat (that is, a seat designed to be easily removed and replaced by means installed by the manufacturer for that purpose) shall meet the requirements of S4.4.3.2, and may use an upper torso belt that detaches at the upper anchorage point to meet those requirements. 4. At 54 FR 46267, Nov. 2, 1989, Sec. 1571.208 was amended by revising S7.1.1.3 and adding S7.1.1.5, effective Sept. 1, 1991. At 55 FR 30919, July 30, 1990, S7.1.1.3 was again revised and S7.1.1.5 was removed, effective Sept. 1, 1991. For the convenience of the user, the revised text follows: * * * * * S7.1.1.3 A Type 1 lap belt or the lap belt portion of any Type 2 seat belt assembly installed at any forward-facing outboard designated seating position of a vehicle with a gross vehicle weight rating of 10,000 pounds or less to comply with a requirement of this standard, except walk-in van-type vehicles and school buses, shall meet the requirements of S7.1 by means of an emergency locking retractor that conforms to Standard No. 209 (49 CFR 571.209). God I hate the Federal .gov. 
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Keep in mind a harness + cage/bar is meant to be used with a helmet. Since your vehicle's safety systems (side/front airbags, seat belts/auto tensioners) were meant to work together in a specific way during an impact, a harness may negatively affect this action. Also, a roll bar/cage that's in close proximity to the head, can cause more head trauma if you're not wearing a helmet.
One of my cars has a full cage and harness, along with removable steering wheel (no airbag). If I ever wanted to get it re-inspected for street use, every year I'd have to put the stock seat belts back in, as well as the airbags (to include the factory seats with side airbags), because they're all tied into the airbag system. In VA, if the airbag light is on (for one part missing), it's a no-go for the inspection. I run just a harness in my street car for auto-x events, but only use it on the track. |
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Read your state law. I'm guessing any DOT approved belts would be fine. This. Look for the DOT approval stamp of the tag on the aftermarket belts. You may still get a ticket, but you should be able to beat it in court with the DOT approved harnesses. Just do your research on the best method to attach them to your car, improperly installed harnesses can actualy cause your seat frame to crumple in an accident and cause you serious injury. There are lots of scca and miata forums out there, and scca competitors are just as friendly as gun owners. I've been in plenty of street legal cars with 4pt setups, go with a quality brand. Posted Via AR15.Com Mobile |
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Keep in mind a harness + cage/bar is meant to be used with a helmet. Since your vehicle's safety systems (side/front airbags, seat belts/auto tensioners) were meant to work together in a specific way during an impact, a harness may negatively affect this action. Also, a roll bar/cage that's in close proximity to the head, can cause more head trauma if you're not wearing a helmet. One of my cars has a full cage and harness, along with removable steering wheel (no airbag). If I ever wanted to get it re-inspected for street use, every year I'd have to put the stock seat belts back in, as well as the airbags (to include the factory seats with side airbags), because they're all tied into the airbag system. In VA, if the airbag light is on (for one part missing), it's a no-go for the inspection. I run just a harness in my street car for auto-x events, but only use it on the track. Side cutters, meet idiot light wires
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| why not just keep the stock belt system, its not like its costing you any weight at all, and if it was by the point it mattered you are not really driving a street car anymore. After spending alot of time at the local strip(1/4 mile) i've seen a lot of people that run both. |
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I wouldn't have a problem with it, but I work in Texas and you're not there. Know any local cops you could ask? Wouldn't hurt to call the local PD or SO and ask someone that specializes in traffic. Every local level LEO I have spoken with says that they do not know, BUT that they would not issue a ticket. It's the Barney Fife in the nxt town over (the one that they support the PD with ticket money) that has me thinking.(Kilbuck Twp) |
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why not just keep the stock belt system, its not like its costing you any weight at all, and if it was by the point it mattered you are not really driving a street car anymore. After spending alot of time at the local strip(1/4 mile) i've seen a lot of people that run both. I am seriously considering this, and it'll probably be the way I go. |
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why not just keep the stock belt system, its not like its costing you any weight at all, and if it was by the point it mattered you are not really driving a street car anymore. After spending alot of time at the local strip(1/4 mile) i've seen a lot of people that run both. I am seriously considering this, and it'll probably be the way I go. I had them both in my old Cobra just not to have to deal with the cops that don't know the laws, and I didn't feel like putting on a 5 point to go get some milk ETA: I should mention that i had a full cage in that car. |
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Note: If the vehicle in question has a rool cage, then and only then are you safer with a 5th or 6th belt than with a 4-point harness.
Without a roll cage, you want the ability to submarine down into the foot well if the roof collapses into the passenger compartment. |
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Note: If the vehicle in question has a rool cage, then and only then are you safer with a 5th or 6th belt than with a 4-point harness. Without a roll cage, you want the ability to submarine down into the foot well if the roof collapses into the passenger compartment. good point |
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Why are you so concerned about the seat belts?
I'd think you would worry more about the squirrels that power that little go-cart miata. Four squirrel power must cost a bundle to power around a track. What with the animal cruelty of having to keep them tooted up on meth to get that little engine to go. 
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Read your state law. I'm guessing any DOT approved belts would be fine. I sort of figure the same, and I really can't imagine too many LEOs writing a guy up for something like that if the seat belt EXCEEDS spec, even if it WASN"T actually kosher, but it seems that there is always a Barney Fife or a guy with a cat on a leash  out there ready to create a problem where there isn't one.
Since when has that ever been something you worried about? So was it the cat or your neighbor who was the bad influence that led you astray? |
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It's the Barney Fife in the nxt town over (the one that they support the PD with ticket money) that has me thinking.(Kilbuck Twp) Ask my Dad about his ticket for not having a shoulder belt in his 57 Chevy sedan. Trooper wouldn't beleive that the car only came with lap belts and seatbelt laws were not retroactive.
Idiot trooper should have been fired for that one. He had to get a lawyer and fight the ticket in court, he won, but the lawyer cost him. |
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