NY Veh & Traf L § 386 (2021)
2021 New York Laws VAT - Vehicle and Traffic Title 3 - Safety Responsibility; Financial Security; Equipment; Inspection; Size and Weight; and Other Provisions Article 10 - Dimensions and Weights of Vehicles 386 - Motor Vehicle Sound Level Limits.

§ 386. Motor vehicle sound level limits. 1. As used in this section;a. A-weighted sound level shall mean the sound pressure level measured   by  the  use  of  an  instrument  with  the metering characteristics and   A-weighting frequency response prescribed for sound level meters.b. Combination of vehicles shall mean any device consisting of a motor   vehicle and one or more trailers drawn by such motor vehicle.c. Sound pressure level shall mean twenty times the logarithm  to  the   base  ten of the ratio of the root mean squared pressure of a sound to a   reference pressure of twenty micropascals.  The  unit  applied  to  this   measure shall be the decibel (dB).2.  This  section  shall apply to the total sound level emitted from a   motor vehicle or a combination of vehicles.3. Unlawful acts.a. It shall be unlawful for any person  to  operate  or  cause  to  be   operated  on  a  public  highway  any  motor  vehicle  or combination of   vehicles with a maximum gross weight in excess of ten  thousand  pounds,   at  any  time,  under  any  condition  of  grade,  load, acceleration or   deceleration in such a manner as to  exceed  the  applicable  A-weighted   sound  level set forth in table I. The maximum allowable sound levels in   table I are based on a sound  level  measured  at,  or  adjusted  to,  a   distance  of  fifty  feet from the center of the lane in which the motor   vehicle is traveling.TABLE IMAXIMUM ALLOWABLEA-WEIGHTED SOUND LEVELSMaximum Speed Limit   35 miles   per hour                                                         over 35   or less                                                   miles per hour   86dB (A)                                                       90 dB (A)b. In addition, it shall be unlawful for  any  person  to  operate  or   cause  to  be  operated  on  a  public  highway  any  motor  vehicle  or   combination of vehicles with a maximum gross weight  in  excess  of  ten   thousand  pounds  and  equipped  with  an  engine  speed governor, which   generates an A-weighted sound level  in  excess  of  eighty-eight  dB(A)   measured  at,  or  adjusted  to,  a  distance  of  fifty  feet  from the   longitudinal centerline of the vehicle, when the engine of such  vehicle   is  accelerated  from  idle  with a wide open throttle to governed speed   with the vehicle stationary, transmission in neutral and clutch engaged.c. It shall be unlawful for any person  to  operate  or  cause  to  be   operated  on  a  public  highway  any  motor  vehicle  or combination of   vehicles, except  motorcycles,  with  a  maximum  gross  weight  of  ten   thousand  pounds  or  less,  at  any time, under any condition of grade,   load, acceleration or deceleration in such a manner  as  to  exceed  the   applicable  A-weighted  sound  level  set forth in table II. The maximum   allowable sound levels in table II are based on a sound  level  measured   at, or adjusted to, a distance of fifty feet from the center of the lane   in which the motor vehicle is traveling:TABLE IIMAXIMUM ALLOWABLEA-WEIGHTED SOUND LEVELSMaximum Speed Limit   35 miles   per hour                                                         over 35   or less                                                   miles per hour   76 dB(A)                                                        82 dB(A)d.  It  shall  be  unlawful  for  any person to operate or cause to be   operated on a public highway any motorcycle,  at  any  time,  under  any    condition  of grade, load, acceleration or deceleration in such a manner   as to exceed the applicable A-weighted sound level set  forth  in  table   III.  The  maximum  allowable  sound  levels in table III are based on a   sound  level  measured at, or adjusted to, a distance of fifty feet from   the center of the lane in which the motorcycle is traveling.TABLE IIIMAXIMUM ALLOWABLEA-WEIGHTED SOUND LEVELSMaximum Speed Limit   35 miles   per hour                                                         over 35   or less                                                   miles per hour   82 dB(A)                                                        86 dB(A)4. The commissioner of  environmental  conservation  shall  promulgate   regulations  establishing the measurement procedures and instrumentation   to be utilized in the enforcement of this section.a. These procedures shall allow, to the extent feasible, motor vehicle   sound measurements to be accomplished in reasonably confined areas  such   as  residential  areas  of  urban  cities,  and  may  provide  for sound   measurement at distances other than fifty feet and in  the  vicinity  of   sound reflecting surfaces.b. The regulations shall take into consideration recognized scientific   and  professional  standards  for  the  measurement  of  vehicular sound   levels.5. The provisions of this section shall  not  apply  to  vehicles  and   implements or combinations thereof used solely for farm purposes, nor to   authorized emergency vehicles.6.  Nothing  in  this  section  shall  be  construed  as  limiting  or   precluding the  enforcement  of  equipment  requirements  or  any  other   provisions of law relating to motor vehicle noise.7.  At  intervals  of  not  more  than  two years, the commissioner of   environmental  conservation  shall  report  to  the  governor  and   the   legislature on the current state of the art of motor vehicle sound level   limitations and recommend changes as necessary.