Section 24-236. Motor vehicles

(a) Motor vehicles, other than motorcycles,
  with a maximum gross weight of 10,000 lbs.  or  less.  No  person  shall
  cause  or  permit  any  motor  vehicle,  other than a motorcycle, with a
  maximum gross weight of 10,000 lbs. or  less  to  operate  on  a  public
  right-of-way  where  the  muffler  or  exhaust generates a sound that is
  plainly audible to another individual at a distance of 150 feet or  more
  from the motor vehicle.
    (b)  Motorcycles.  No  person  shall cause or permit any motorcycle to
  operate on a public right-of-way where the muffler or exhaust  generates
  a  sound  that is plainly audible to another individual at a distance of
  200 feet or more from the motorcycle.
    (c) Motor vehicles with a maximum gross  weight  greater  than  10,000
  lbs.    No person shall cause or permit any motor vehicle with a maximum
  gross  weight  greater  than  10,000  lbs.  to  operate  on   a   public
  right-of-way  where  the  muffler  or  exhaust generates a sound that is
  plainly audible to another individual at a distance of 200 feet or  more
  from  the  motor vehicle, except when compression brake systems are used
  in an emergency to stop the vehicle.
    (d) (1) No person operating a motor vehicle containing  a  compression
  brake  system  or  systems  shall apply such compression brake system or
  systems except when such system or systems are used in an  emergency  to
  stop the vehicle.
    (2) The department is authorized to post signs at every entry point of
  the  city  containing  the following information: THE USE OF COMPRESSION
  BRAKE SYSTEMS IS PROHIBITED ON STREETS WITHIN NEW YORK  CITY  WHERE  THE
  SPEED LIMIT IS 35 MILES PER HOUR OR LESS EXCEPT IN CASE OF AN EMERGENCY.
    (e)  No  person  shall  cause  or  permit the total sound from a motor
  vehicle operating on any public right-of-way to exceed the  sound  level
  set  forth  in  section 386 of the vehicle and traffic law and the rules
  adopted pursuant to such section.
    (f) Subdivisions a, b, c and paragraph one of subdivision  d  of  this
  section  may  only  be  enforced  on streets where the speed limit is 35
  miles per hour or less.