15.36.370: O ZONING DISTRICT:
The following signs are permitted in the O open district:
   A.   Signs related to a public use or purpose.
   B.   Private signs subject to review and approval by the director.
   C.   Signs for commercial/industrial uses, subject to the C-4 zoning district regulations contained in this chapter. (Ord. 2552 § 1, 2004)
15.36.380: A-D ZONING DISTRICT:
Signs in the A-D zoning district shall be subject to the requirements of the C-3 zoning district, with the addition of the following regulations:
   A.   Flight Safety Considerations: All signs located in the A-D airport district are subject to flight safety considerations, and must be approved by the director.
   B.   Permitted Signs: The following sign types are permitted:
      1.   For rent, sale, or lease signs.
      2.   Directional signs to direct motorists to destinations within the airport.
      3.   One freestanding sign per airport, which may include a directory type listing of tenants at the airport.
      4.   Signs painted in accordance with FAA regulations, for the use of air navigation and ground traffic.
   C.   Sign Sizes: Sign sizes shall be as specified in the C-4 zoning district standards.
   D.   Sign Locations: With the exception of the freestanding airport identification sign, all signs shall be painted or mounted parallel to the fascia of a building. (Ord. 2552 § 1, 2004)