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MICHIGAN STATUTES AND CODES
Section 257.707c - Noise limitations; prohibitions.
Act 300 of 1949
257.707c Noise limitations; prohibitions.
Sec. 707c.
(1) After April 1, 1978, a motor vehicle shall not be operated or driven on a highway or street if the motor vehicle produces total noise exceeding 1 of the following limits at a distance of 50 feet except as provided in subdivisions (b)(iii) and (c)(iii):
(a) A motor vehicle with a gross weight or gross vehicle weight rating of 8,500 pounds or more, combination vehicle with gross weight or gross vehicle weight ratings of 8,500 pounds or more.
(i) Ninety DBA if the maximum lawful speed on the highway or street is greater than 35 miles per hour.
(ii) Eighty-six DBA if the maximum lawful speed on the highway or street is not more than 35 miles per hour.
(iii) Eighty-eight DBA under stationary run-up test.
(b) A motorcycle or a moped:
(i) Eighty-six DBA if the maximum lawful speed on the highway or street is greater than 35 miles per hour.
(ii) Eighty-two DBA if the maximum lawful speed on the highway or street is not more than 35 miles per hour.
(iii) Ninety-five DBA under stationary run-up test at 75 inches.
(c) A motor vehicle or a combination of vehicles towed by a motor vehicle not covered in subdivision (a) or (b):
(i) Eighty-two DBA if the maximum lawful speed on the highway or street is greater than 35 miles per hour.
(ii) Seventy-six DBA if the maximum lawful speed on the highway or street is not more than 35 miles per hour.
(iii) Ninety-five DBA under stationary run-up test 20 inches from the end of the tailpipe.
(2) A dealer shall not sell or offer for sale for use upon a street or highway in this state a new motor vehicle manufactured after April 1, 1978, which produces a maximum noise exceeding the following limits:
(a) A motor vehicle with a gross vehicle weight rating of 8,500 pounds or more—83 DBA.
(b) A motorcycle or a moped—83 DBA.
(c) A motor vehicle not covered in subdivision (a) or (b)—80 DBA.
(3) A person shall not operate a vehicle on a highway or street if the vehicle has a defect in the exhaust system which affects sound reduction, is not equipped with a muffler or other noise dissipative device, or is equipped with a cutout, bypass, amplifier, or a similar device.
(4) A person, either acting for himself or herself or as the agent or employee of another, shall not sell, install, or replace a muffler or exhaust part that causes the motor vehicle to which the muffler or exhaust part is attached to exceed the noise limits established by this act or a rule promulgated under this act.
(5) A person shall not modify, repair, replace, or remove a part of an exhaust system causing the motor vehicle to which the system is attached to produce noise in excess of the levels established by this act, or operate a motor vehicle so altered on a street or highway.
(6) A dealer shall not sell a used or secondhand motor vehicle for use upon a street or highway which is not in compliance with this act.
History: Add. 1978, Act 73, Imd. Eff. Mar. 21, 1978 ;-- Am. 1978, Act 492, Imd. Eff. Dec. 1, 1978