61-9-403. Mufflers — prevention of noise. (1) Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke, and no person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a highway.

Terms Used In Montana Code 61-9-403

  • 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

  • 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
  • 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)The engine and power mechanism of every motor vehicle shall be so equipped and adjusted as to prevent the escape of excessive fumes or smoke.