No one except duly authorized persons, peace officers, federal law enforcement officers, Snohomish county and air carrier employees, or members of the Armed Forces of the United States on official duty shall carry any firearms or explosives on the airport grounds without the written permission of the airport manager. Exceptions from this regulation are passengers on air carrier or charter flights carrying cased sporting guns and firearms in survival kits stored in aircraft owners’ hangar or airplane. (Added by Res. adopted June 24, 1974; Amended by Ord. 92-132, Nov. 18, 1992).