(a) Whoever willfully shall violate any such regulation or order as, pursuant to lawful authority, shall be or has been promulgated or approved by the Secretary of Defense, or by any military commander designated by the Secretary of Defense, or by the Director of the National Advisory Committee for Aeronautics, for the protection or security of military or naval aircraft, airports, airport facilities, vessels, harbors, ports, piers, waterfront facilities, bases, forts, posts, laboratories, stations, vehicles, equipment, explosives, or other property or places subject to the jurisdiction, administration, or in the custody of the Department of Defense, any Department or agency of which said Department consists, or any officer or employee of said Department or agency, or of the National Advisory Committee for Aeronautics or any officer or employee thereof, relating to fire hazards, fire protection, lighting, machinery, guard service, disrepair, disuse or other unsatisfactory conditions thereon, or the ingress thereto or egress or removal of persons therefrom, or otherwise providing for safeguarding the same against destruction, loss, or injury by accident or by enemy action, sabotage or other subversive actions, shall be guilty of a misdemeanor and upon conviction thereof shall be liable to a fine of not to exceed $5,000 or to imprisonment for not more than one year or both.

(b) Every such regulation or order shall be posted in conspicuous and appropriate places. Sept. 23, 1950, c. 1024, Title I, Par. 21, 64 Stat. 1005.