61-9-435. Exhaust noise limitation. (1) Except as provided in subsection (3), a person may not operate a motor vehicle with an exhaust system that emits a noise in excess of 95 decibels, as measured by the society of automotive engineers’ standard j1169 (May 1998).

Terms Used In Montana Code 61-9-435

  • Motor vehicle: means :

    (i)a vehicle propelled by its own power and designed or used to transport persons or property on the highways of the state;

    (ii)a quadricycle if it is equipped for use on the highways as prescribed in chapter 9; or

    (iii)a golf cart only if it is equipped for use on the highways as prescribed in chapter 9 and is operated pursuant to 61-8-391 or by a person with a low-speed restricted driver's license. See Montana Code 61-1-101

  • Motorcycle: means a motor vehicle that has a seat or saddle for the use of the operator and that is designated to travel on not more than three wheels in contact with the ground. See Montana Code 61-1-101
  • person: means an individual, corporation, partnership, limited partnership, limited liability company, association, joint venture, state agency, local government unit, another state government, the United States, a political subdivision of this or another state, or any other legal or commercial entity. See Montana Code 61-1-101
  • Quadricycle: means a four-wheeled motor vehicle, designed for on-road or off-road use, having a seat or saddle on which the operator sits. See Montana Code 61-1-101
  • Vehicle: means a device in, on, or by which any person or property may be transported or drawn on a public highway, except devices moved by animal power or used exclusively on stationary rails or tracks. See Montana Code 61-1-101

(2)A person charged with violating this section may not be convicted if the person had reasonable grounds to believe that the vehicle was not operated in violation of the standard in subsection (1).

(3)This section does not apply to a motorcycle or quadricycle that is subject to 61-9-418.