§ 9.48.030   Prohibited acts.
   A.   No person shall knowingly continue, cause or permit to be made or continue to make any excessive or unnecessary sounds which are listed in division B. of this section or § 9.48.040.
   B. The following acts are declared to create excessive and unnecessary sounds in violation of the chapter without regard to the maximum sound levels of § 9.48.040.
      1.   Radios; Phonographs; Tape Players; Television Sets; Stereo Systems. The playing, using or operating of any radio, tape player, television set or stereo system, including those installed in a vehicle, in such a manner so as to be plainly audible at any time between 10:00 p.m. and 7:00 a.m. the following day, local time, either:
         a.   Within a noise-sensitive unit which is not the source of the sound; or
         b.   At a distance of 100 feet or more from the source of the sound.
      2.   Revving Engines. Operating any motor vehicle engine above idling speed on or off the public right-of-way, so as to create excessive or unnecessary sounds within a noise-sensitive area.
      3.   Compression Braking Devices. Using compression brakes, commonly referred to as jake brakes, on any motor vehicle, except to avoid imminent danger to persons or property.
      4.   Exhausts. Discharging into the open air the exhaust of any steam engine, internal combustion engine, or any mechanical device operated by compressed air or steam without a muffler, or with a sound control device less effective than that provided on the original engine or mechanical device.
      5.   Idling Engines on Motor Vehicles or Compressors on Refrigerated Trailers. Idling more than 15 consecutive minutes between the hours of 10:00 p.m. and 7:00 a.m. the following day, local time, any motor vehicle with a Gross Vehicle Weight Rating (GVWR) of 8,000 pounds or greater which exceeds 50 dBA on the nearest occupied noise- sensitive property.
      6.   Vehicle Tires. Squealing tires by excessive speed or acceleration on or off public right- of-way, except when necessary to avoid imminent danger to persons or property.
      7.   Motorcycles; Go-Karts; Dune Buggies. Operating motorcycles, go-karts, dune buggies and other off-road recreational vehicles off the public right-of-way on property not specifically designated as a recreational park for off-road recreational use in such a manner as to exceed 75 dBA at 50 feet or more.
      8.   Powered Model Vehicles. Operating or permitting the operation of powered model vehicles, with the exception of gliders and aircraft propelled by electric motors, in areas not designated by the City Administrator or City Council for that use, in such a manner as not to exceed 75 dBA at 50 feet or more.
      9.   Explosives. The discharge of fireworks and other explosive devices unless pursuant to a locally permitted display or program.
      10.   Tampering. The removal or rendering inoperative for purposes other than maintenance, repair or replacement of any noise control device.
      11.   Animals. Owning, possessing or harboring any bird or other animal, which barks, bays, cries, howls or makes any other noise continuously for a period of 10 minutes or more, for reasons other than being provoked by a person trespassing or threatening to trespass.
      12.   Steam Whistles. Blowing any steam whistle attached to any stationary boiler, except to give notice of the time to begin or stop work.
      13.   Compressed Air Devices. The use of a mechanical device operated by compressed air, steam or otherwise, unless the noise thereby created is effectively muffled.
      14.   Warning Devices. The sound created by warning devices that are not reset within 5 minutes after being triggered.