(a) No weapon, dangerous instrument, or any other item intended for use as a weapon may be carried in or on any facility or conveyance. This provision does not apply to law enforcement personnel and persons to whom a license for such weapon has been duly issued and is in force (provided in the latter case the weapon is concealed from view). For the purposes hereof, a weapon or dangerous instrument shall include, but not be limited to, a firearm, switchblade knife, box cutter, straight razor or razor blades that are not wrapped or enclosed in a protective covering, gravity knife, sword, shotgun or rifle.

(b) No explosives or other highly combustible materials, or radioactive materials, may be carried on or in any facility or conveyance, except as authorized by the authority.

(c) Subject to other provisions of the law, this section shall not apply to a rifle or shotgun which is unloaded and carried in an enclosed case, box or other container which completely conceals the item from view and identification as a weapon.