(a) A lighted headlight and taillight.
(b) An adequate braking device that may be operated either by hand or foot.
(c) An adequate and operating muffling device that shall effectively blend the exhaust and motor noise in such a manner so as to preclude excessive or unusual noise and, on snowmobiles manufactured after January 4, 1973, that shall effectively maintain such noise at a level of 82 decibels or below on the "A" scale at 100 feet.
(2) The Department of State Police shall establish procedures for testing of noise levels consistent with this section.
(3) Snowmobiles used in organized racing events in an area designated for that purpose may use a bypass or cutout device without violation of the requirements for muffling devices and for noise levels under this section.
(4) In addition to other penalties provided by this section, the owner or operator of a snowmobile may be liable as provided under ORS 821.310.
(5) The offense described in this section, improperly equipped snowmobile, is a Class D traffic violation. [1983 c.338 §728; 1985 c.393 §44; 1995 c.383 §112]