49 USC 46505 – Carrying a weapon or explosive on an aircraft
(a)
(b)
(1) when on, or attempting to get on, an aircraft in, or intended for operation in, air transportation or intrastate air transportation, has on or about the individual or the property of the individual a concealed dangerous weapon that is or would be accessible to the individual in flight;
(2) has placed, attempted to place, or attempted to have placed a loaded firearm on that aircraft in property not accessible to passengers in flight; or
(3) has on or about the individual, or has placed, attempted to place, or attempted to have placed on that aircraft, an explosive or incendiary device.
(c)
(d)
(1) a law enforcement officer of a State or political subdivision of a State, or an officer or employee of the United States Government, authorized to carry arms in an official capacity;
(2) another individual the Administrator of the Federal Aviation Administration or the Administrator of the Transportation Security Administration by regulation authorizes to carry a dangerous weapon in air transportation or intrastate air transportation; or
(3) an individual transporting a weapon (except a loaded firearm) in baggage not accessible to a passenger in flight if the air carrier was informed of the presence of the weapon.
(e)