SEC. 85.441. NOISE ABATEMENT PROCEDURES.

   All persons operating aircraft from County airports shall comply with all noise abatement procedures, traffic patterns and policies as may be established by County and acceptable to FAA.

SEC. 85.442. TRAINING FLIGHT RESTRICTIONS.

   Only those aircraft that on takeoff or landing cause an effective perceived noise level (EPNL) not greater than 90 decibels (dB) at a sideline location 450 meters (1500 feet) from the extended centerline of the runway shall be permitted to conduct training flights at Gillespie Field, Palomar Airport, Ramona Airport and Borrego Valley Airport.

   (a)   For purposes of this part the sideline effective perceived noise level shall be that measured or estimated as provided in Federal Aviation Administration Advisory Circulars 36-1B, dated December 5, 1977, and 36-2A, dated February 6, 1978, which circulars, including all subsequent revisions, amendments and reissues thereof, are incorporated herein by reference.

   (b)   For the purpose of this part "training flight" shall mean any instrument or visual approach to the airport conducted for the purpose of student instruction, pilot proficiency training, or pilot evaluation check rides, whether or not a landing touchdown is accomplished.

(Amended by Ord. No. 5898 (N.S.), effective 11-6-80)

SEC. 85.443. PERMANENTLY BASED AIRCRAFT.

   Only those aircraft that on takeoff or landing cause an effective perceived noise level (EPNL) not greater than 90 decibels (dB) at a sideline location 450 meters (1500 feet) from the extended centerline of the runway shall be permitted to establish permanent base of operations at Gillespie Field, Palomar Airport, Ramona Airport, or Borrego Valley Airport after the effective date of this ordinance.

   (a)   For the purpose of this part the sideline effective perceived noise level shall be that measured or estimated as provided in Federal Aviation Administration Advisory Circulars 36-1B, dated December 5, 1977, and 36-2A, dated February 6, 1978, which circulars, including all subsequent revisions, amendments and reissues thereof, are incorporated herein by reference.

   (b)   A "Permanent Base of Operations" for an aircraft is established at an airport whenever that airport serves as the base of activities for flight operations, maintenance and/or storage for any period exceeding 21 days in a calendar year.

(Added by Ord. No. 5898 (N.S.), effective 11-6-80)

ARTICLE 5. MOTOR VEHICLE REGULATIONS*

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   *Cross reference(s)--Traffic code, § 72.1 et seq.

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SEC. 85.451. GENERAL.

   Motor vehicles shall be operated on the airport in strict compliance with the applicable provisions of the California Motor Vehicle Code, the San Diego County Code, and with these rules and regulations.

SEC. 85.452. RESTRICTED AREAS.

   No motorized equipment or vehicles shall be operated on the aircraft aprons of the field or on the taxiway and aircraft landing area, except by persons assigned to duty in those areas or by persons so authorized by the airport manager.

SEC. 85.453. SPEED.

   Motor vehicles shall be operated in strict compliance with the speed limits prescribed by the airport manager and indicated by posted traffic signs. In no event shall any motor vehicle, except emergency vehicles in any emergency situation, exceed a speed of twenty-five (25) miles per hour.