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).
(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.
History: En. Sec. 5, Ch. 329, L. 2007.
Structure Montana Code Annotated
Part 4. Miscellaneous Regulations
61-9-401. Horns, security alarms, and warning devices
61-9-403. Mufflers -- prevention of noise
61-9-407. Fenders, splash aprons, or flaps required on certain vehicles -- dimension and location
61-9-408. Safety glazing material in motor vehicles
61-9-409. Seatbelts required in vehicles manufactured after 1964
61-9-411. Certain vehicles to carry flares or other warning devices
61-9-412. Display of warning devices when vehicle disabled
61-9-413. Vehicles transporting explosives
61-9-415. Slow-moving vehicles
61-9-416. Commercial tow truck definition -- requirements
61-9-417. Headgear required for minor motorcycle riders
61-9-419. "Properly restrained" defined
61-9-420. Child safety restraint systems -- standards -- exemptions
61-9-421. Certain vehicles exempt
61-9-422. Evidence admissible without presumption of negligence
61-9-424. and 61-9-425 reserved
61-9-426. Air-conditioning equipment -- use of flammable refrigerant prohibited
61-9-427. Air-conditioning equipment -- sale prohibited
61-9-428. Window tinting and sunscreening -- waiver -- conditions
61-9-429. Window tinting and sunscreening -- penalty
61-9-431. Use of warning signs, flares, reflectors, lanterns, and flag persons
61-9-432. Low-speed and medium-speed electric vehicles -- required equipment