(1) Counties or municipalities may adopt resolutions or ordinances prohibiting the operation of motor vehicles within their respective jurisdictions that produce noise in excess of the sound levels in decibels, measured on the "A" scale on a standard sound level meter having characteristics established by the American national standards institute, publication S1.4 - 1971, and measured at a distance of fifty feet from the center of the lane of travel and within the speed limits specified in this section:
Speed limit of
35 mph or less
Speed limit of more
than 35 mph but
less than 55 mph
(a) Any motor vehicle with a
manufacturer's gross vehicle
weight rating of six
thousand pounds or more,
any combination of vehicles
towed by such motor
vehicle, and any motorcycle
other than a low-power
scooter:
(I) Before January 1, 1973
88 db(A)
90 db(A)
(II) On and after
January 1, 1973
86 db(A)
90 db(A)
(b) (Deleted by amendment, L. 2008, p. 2102, § 3, effective July 1, 2010.)
(2) The governing board shall adopt resolutions establishing any test procedures deemed necessary.
(3) This section applies to the total noise from a vehicle or combination of vehicles.
(4) For the purpose of this section, a truck, truck tractor, or bus that is not equipped with an identification plate or marking bearing the manufacturer's name and manufacturer's gross vehicle weight rating shall be considered as having a manufacturer's gross vehicle weight rating of six thousand pounds or more if the unladen weight is more than five thousand pounds.
Source: L. 71: p. 651, § 1. C.R.S. 1963: § 66-35-7. L. 73: p. 1406, § 48. L. 2008: IP(1) and (1)(b) amended, p. 2102, § 3, effective July 1, 2010. L. 2009: IP(1)(a) amended, (HB 09-1026), ch. 281, p. 1259, § 21, effective October 1.