Code of Massachusetts Regulations
540 CMR - REGISTRY OF MOTOR VEHICLES
Title 540 CMR 3.00 - Motorcycle Noise Abatement
Section 3.02 - Allowable Noise Levels for Motorcycles
Universal Citation: 540 MA Code of Regs 540.3
Current through Register 1531, September 27, 2024
(1) Statutory Standard for Motorcycles intended for use in the Commonwealth. No person shall operate a motorcycle within the Common wealth unless it complies with the noise standards contained in M.G.L. c. 90, § 7U.
(2) Registry of Motor Vehicles stationary noise level testing. The Registrar adopts the following stationary noise levels which correlate with the non-stationary levels established by M.G.L. c. 90, § 7U.
(a) Motorcycles required to be
registered under M.G.L. c. 90, § 2 for operation on the ways of the
commonwealth shall not exceed the following noise levels when operated at %
redline speed:
99 dBA if manufactured after 1/1/86
102 dBA if manufactured before 1/1/86
(b) Off-road motorcycles required to be
registered under M.G.L. c. 90B shall not exceed 105d BA when operated at %
redline speed.
(c) For purposes of
540 CMR
3.00, redline speed is defined as the lowest numerical
engine speed included in the red-zone of the motorcycle tachometer. If the
particular motorcycle has no tachometer, a hand held tachometer meeting the
specifications of
540 CMR
3.03(4) shall be used
together with % of the redline speed as specified by the manufacturer of the
particular motorcycle.
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