Around these parts, compiance with 922r is a concern for many of us. But where did it come from?
Popular lore says that George HW Bush signed an Executive order in March 1989.
this m14 article claims that "The Presidential Executive Order import ban of March 1989 affected the Chinese M14 rifles brought into the United States."
But I have no idea were to find this executive order. Here are the executive orders from March 1989:

source Executive Order 12670 Nuclear Cooperation Wth EURATOM * Signed: March 9, 1989
Executive Order 12671 Exclusion of the Customs Office of Enforcement from the Federal Labor-Management Relations Program * Signed: March 14, 1989
Executive Order 12672 Interagency Committee on Handicapped Employees * Signed: March 21, 1989
Executive Order 12673 Delegation of disaster relief and emergency assistance functions * Signed: March 23, 1989 |
You can also find the
texts of the orders.
Here is another bit I came across. An article at
brownells.com claims

1989 Import Ban In 1989, then President George signed an Executive Order halting the importation of semi-automatic rifles that could not meet certain "sporting" criteria into the U.S.
That ban was later made into law in on November 30, 1990 and later amended in 1993. The section is 18 USC Chapter 44, subsection 178.39 and is entitled Assembly of semiautomatic rifles and shotguns. This provision of the law was made to close a supposed loophole that allowed people to assemble a banned rifle or shotgun from parts. |
I dont think there IS a subsection 178.39 in 18 USC Chapter 44. Either way, I can't confirm that congress did ANYTHING on 30 Nov 1990. The
Congressional Record of the 101st congress at thomase.loc.gov only has details for 2 Nov 1990.
The relevant sections of 18 USC Ch 44 are
922r
(r) It shall be unlawful for any person to assemble from imported parts any semiautomatic rifle or any shotgun which is identical to any rifle or shotgun prohibited from importation under section 925 (d)(3) of this chapter as not being particularly suitable for or readily adaptable to sporting purposes except that this subsection shall not apply to— (1) the assembly of any such rifle or shotgun for sale or distribution by a licensed manufacturer to the United States or any department or agency thereof or to any State or any department, agency, or political subdivision thereof; or (2) the assembly of any such rifle or shotgun for the purposes of testing or experimentation authorized by the Attorney General. |
which refers to
18 USC Chapter 44 Section 925 (d)(3)
(d) The Attorney General shall authorize a firearm or ammunition to be imported or brought into the United States or any possession thereof if the firearm or ammunition—
...
(3) is of a type that does not fall within the definition of a firearm as defined in section 5845(a) of the Internal Revenue Code of 1986 and is generally recognized as particularly suitable for or readily adaptable to sporting purposes, excluding surplus military firearms, except in any case where the Attorney General has not authorized the importation of the firearm pursuant to this paragraph, it shall be unlawful to import any frame, receiver, or barrel of such firearm which would be prohibited if assembled; |
Oh, great. so wtf is
section 5845(a) of the Internal Revenue Code of 1986? a "Definitions" section, it seems.

Sec. 5845. Definitions For the purpose of this chapter - (a) Firearm The term ''firearm'' means (1) a shotgun having a barrel or barrels of less than 18 inches in length; (2) a weapon made from a shotgun if such weapon as modified has an overall length of less than 26 inches or a barrel or barrels of less than 18 inches in length; (3) a rifle having a barrel or barrels of less than 16 inches in length; (4) a weapon made from a rifle if such weapon as modified has an overall length of less than 26 inches or a barrel or barrels of less than 16 inches in length; (5) any other weapon, as defined in subsection (e); (6) a machinegun; (7) any silencer (as defined in section 921 of title 18, United States Code); and (8) a destructive device. The term ''firearm'' shall not include an antique firearm or any device (other than a machinegun or destructive device) which, although designed as a weapon, the Secretary finds by reason of the date of its manufacture, value, design, and other characteristics is primarily a collector's item and is not likely to be used as a weapon. |
I think the Important part of 922r is that the Attorney General is only able to allow import of firearms that are “generally recognized as particularly suitable for or readily adaptable to sporting purposes”. I don’t know how this became law, but no Executive Order or law defines what a sporting purpose is, from what I can tell.
178.39 may refer to the
Code of Federal RegulationsTitle 27, Volume 1, Parts 1 to 199
Revised as of April 1, 1999

Page 941
Sec. 178.39 Assembly of semiautomatic rifles or shotguns.
(a) No person shall assemble a semiautomatic rifle or any shotgun using more than 10 of the imported parts listed in paragraph (c) of this section if the assembled firearm is prohibited from importation under section 925(d)(3) as not being particularly suitable for or readily adaptable to sporting purposes. (b) The provisions of this section shall not apply to: (1) The assembly of such rifle or shotgun for sale or distribution by a licensed manufacturer to the United States or any department or agency thereof or to any State or any department, agency, or political subdivision thereof; or (2) The assembly of such rifle or shotgun for the purposes of testing or experimentation authorized by the Director under the provisions of Sec. 178.151; or (3) The repair of any rifle or shotgun which had been imported into or assembled in the United States prior to November 30, 1990, or the replacement of any part of such firearm. (c) For purposes of this section, the term imported parts are:
(1) Frames, receivers, receiver castings, forgings or stampings (2) Barrels (3) Barrel extensions (4) Mounting blocks (trunions) (5) Muzzle attachments (6) Bolts (7) Bolt carriers (8) Operating rods (9) Gas pistons (10) Trigger housings (11) Triggers (12) Hammers (13) Sears (14) Disconnectors (15) Buttstocks (16) Pistol grips (17) Forearms, handguards (18) Magazine bodies (19) Followers (20) Floorplates
T.D. ATF-346, 58 FR 40589, July 29, 1993 |
That July 29, 1993 bit at the end indicates that the original brownell article isn't too far off the "later amended in 1993". Does the “T.D. ATF” number indicate that this is simply an ATF ruling?
I think the 178.39 is an obsolete number, anyhow. According to this
ATF letter about the AWB sunset:
[quote=the ATF] The provisions of 18 U.S.C. section 922(r) and 27 CFR 478.39 regarding assembly of nonsporting shotguns and semiautomatic rifles from imported parts still apply.
and
27 CFR 478.39 seems to be the new number, as of 2005.
gpoaccess.gov indicates that the Code of Federal Regulations is “The codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government.”
So I’m not sure how the ‘non-sporting’ provision got into us code, but I think the definition of ‘non-sporting’ was just made up by the ATF…