Dave Workman has a great book that discusses WA gun laws; makes a great gift.
WA laws are very similar to VA. Oddly, VA’s pistol permit is not honored in WA.
WA’s concealed Pistol License (CPL) has no training requirements. Pay the man, wait the month or less, get the CPL in the mail. Also, it applies only to pistols (handguns) and is NOT a permit to conceal other weapons. Recent court cases have cast some doubt on knives, but unless he wants to be the pathfinder through the legal system he should remember that his CPL only covers handguns.
WA has full preemption over almost all aspects of gun law; so nothing special about Bellevue there.
Open carry is lawful, and the police know it is lawful, so little drama if he does so.
Caveat: There is no such thing as open carry in a “vehicle”, which currently includes motorcycles, busses, taxis, trollies, and such. To carry a loaded handgun in a vehicle requires a CPL. Without a CPL, he’ll need to unload his handgun before getting in/on. There is no requirement to separate the magazine or ammo far away from the gun (like in the trunk); the magazine just needs to be out of the gun.
A loaded long gun (shotgun or rifle) in a vehicle is unlawful.
Concealed carry without a pistol license is also lawful IF going to, during, and returning from an outdoor activity such as hiking, fishing, hunting, etc.
Caveat: If he’s going to claim this exception (say, if he got stopped and a concealed handgun was discovered) there must be some evidence he’s engaged in said outdoor activity; such as a fishing license, backpack full of hiking/backpacking gear, etc.
Some differences between VA and WA that jump out at me (by no means all-inclusive).
There is no prohibition for carry in a place of worship unless you have a “good and sufficient reason” as VA law states.
Courthouses are similarly off-limits for carry, however in WA the courthouse is required by law to provide secure storage for your handgun while you are there.
Carry on school property is essentially similar to VA, EXCEPT the part about carry on school property for other-than-school functions. WA has no such provision.
Lawful in WA to carry in the airport terminal, even openly. You may not carry in the secure part of the airport (duh) and should not approach the security checkpoint while you’re carrying (the law is somewhat open to interpretation in these areas).
There are no prohibitions on carry in any of the various State parks and recreation areas, and no “named” areas like VA has.
Like VA, he may carry in a restaurant that serves alcohol, however he must stay out of the ‘bar area’ if there is one. The NO MINORS sign is his guide. No minors = no guns. Taverns are off limits to carry. Again, the NO MINORS sign on the front door marks the boundary.
There are currently no laws for magazine size or guns with a provision for suppressors- I really don’t understand the VA laws about this but I know WA doesn’t have them.