Until recently Washington, D.C. had one of the most restrictive gun laws in the world. It was pretty much a complete ban. Interestingly the District of Columbia also has one of the worst crime rates in the nation.
The Supreme Court just overturned the ban and residents of D.C. can now own guns and keep them under lock and key in their homes strictly for protection. It must have a trigger lock on it and be totally inaccessible to any children who live in or visit the home.
Airsoft guns were also illegal in Washington, D.C. To be honest, I don't know if the new change in the law had any affect on this at all. I doubt anyone thought about it and I certainly haven't seen airsoft ownership addressed in any way. I can pretty much guarantee you if the police saw you carrying or using an airsoft gun you would be detained and questioned. Wheter you are breaking the law or not, I don't know!
I'll try to find out more and add to this answer when I do.
No.
no
yes its illegal
im pretty sure airsoft guns are illegal in australia
Well its illegal to have airsoft guns in city limits but if you want to bring your airsoft gun in highly populated areas you might get fined or probobly arrested.
No they are not.
No
No. If you are 18 you may purchace an airsoft gun without a lisence.
Private property and citys.
BB guns and airsoft guns are legal, but it may be illegal to transport them, especially to handle them if they are looking like 'real' guns.
They are illegal to fire in the city but you can travel with them unloaded
Most all teams allows virtually all types of guns. The question is what fields are the CO2 guns allowed.