No person may use flammable liquids, solvents or substances to clean any aircraft, engine, part or accessory thereof, within any hangar or building except a building specially designed for that purpose and approved in writing by the airport manager. Such approval shall only be granted when the airport manager approves the ventilation provisions, fireproofing and fire-extinguishing equipment.
(Ord. 79-12 § 25B, 1979.)