As used in these regulations, unless the context otherwise requires:
AIRPORT: An area used or intended to be used for the landing and take-off of aircraft.
CNR RATING: Composite noise rating value as computed pursuant to federal aviation administration standards and procedures and arranged in contours on a map of airport area of influence (Reference "Land Use Planning Relating to Aircraft Noise", prepared for FAA by Bolt, Beranek and Newman, Inc., October 1964, with appendix A, May 1965).
CNR ZONE 2: A designated area over which the noise rating is between one hundred (100) and one hundred fifteen (115) CNR.
CNR ZONE 3: A designated area over which the noise rating exceeds one hundred fifteen (115) CNR.
COMPATIBLE USE: A use which is presumed to be compatible for the zone in which it is proposed and may be permitted pursuant to these regulations. A compatible use shall not be regarded as a use by right.
DESIGNATED AREA: That area around an airport for which land use controls are needed to prevent development that would be sensitive to aircraft noise.
INCOMPATIBLE USE: A use which shall not be permitted in the CNR zone where it is proposed. (Ord. 912, 10-9-1995)