§ 51.91. Snowmobile sound level requirements.
(a) It is unlawful to operate a snowmobile that produces a sound intensity exceeding 78 decibels at 50 feet on the A scale as measured in accordance with SAE Recommended Practice J-192a.
(b) Except as provided in subsection (c), it is unlawful to operate a snowmobile unless its exhaust system displays an authentic ‘‘SSCC’’ (Snowmobile Safety Certification Committee) stamp.
(c) If the exhaust system of a snowmobile lacks an authentic ‘‘SSCC’’ stamp, the operator, upon the request of a person having authority to enforce the provisions of this chapter, shall produce alternate proof, acceptable to the Department, that the sound intensity, when measured according to the standards in subsection (a), does not exceed the level in subsection (a). Proof acceptable to the Department includes certification by the SSCC or by a competent independent testing laboratory.
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