The bill amends Section 61-9-435 of the Montana Code Annotated, which pertains to exhaust noise limitations for motor vehicles. It establishes that no person may operate a motor vehicle with an exhaust system that emits noise exceeding 95 decibels, as measured by the Society of Automotive Engineers' standard j1169 (May 1998).

A significant change introduced by this bill is the elimination of a defense for individuals charged with violating the exhaust noise limitation. Previously, a person could avoid conviction if they had reasonable grounds to believe their vehicle was not in violation of the noise standard. This defense has been removed, thereby tightening enforcement of the noise limitation statute. The bill also clarifies that the noise limitation does not apply to motorcycles or quadricycles subject to another statute.

Statutes affected:
LC Text: 61-9-435
SB0264_1(1): 61-9-435
SB0264_1(10): 61-9-435
SB0264_1(11): 61-9-435
SB0264_1(2): 61-9-435
SB0264_1(3): 61-9-435
SB0264_1(4): 61-9-435
SB0264_1(5): 61-9-435
SB0264_1(6): 61-9-435
SB0264_1(7): 61-9-435
SB0264_1(8): 61-9-435
SB0264_1(9): 61-9-435
SB0264_1: 61-9-435
SB0264_X(1): 61-9-435
SB0264_X(2): 61-9-435
SB0264_X(3): 61-9-435
SB0264_X(4): 61-9-435
SB0264_X(5): 61-9-435
SB0264_X: 61-9-435