Airborne signs are banned unless an exception applies

A. Except as allowed under subsection B, no person shall use any type of aircraft or other self-propelled or buoyant airborne object to display in any manner, or for any purpose whatsoever, any sign or advertising device. For the purpose of this section, a "sign or advertising device" includes, but is not limited to, a poster, banner, writing, picture, painting, light, model, display, emblem, notice, illustration, insignia, symbol, or any other form of advertising sign or device. B. Exceptions. 1. Nothing in this chapter prohibits the display of an identifying mark, trade name, trade insignia, or trademark on the exterior of an aircraft or self-propelled or buoyant airborne object if the displayed item is under the ownership or registration of the aircraft's or airborne object's owner. 2. Nothing in this chapter prohibits the display of a sign or advertising device placed wholly and visible only within the interior of an aircraft or self-propelled or buoyant airborne object. 3. Nothing in this chapter prohibits the display of an identifying mark, trade name, trade insignia, or trademark on a kitesurfing or kiteboarding kite, a parasail, or a fabric wing used for hang gliding or paragliding. 4. This chapter shall not apply to the display of a sign or advertising device when placed on or attached to any ground, building, or structure and subject to regulation under title 16 or title 19 of this code. Such a sign or advertising device shall be permitted, prohibited, or otherwise regulated as provided under the applicable title. (Ord. No. 3752, § 2, 2010)