Section R. 281.1247 - Inboard and inboard-outboard motorboats 40 feet and over and not more than 65 feet in lengthRule 17. An inboard or inboard-outboard motorboat 40 feet or over and not more than 65 feet in length shall be equipped as follows:
(a) One coast guard-approved backfire flame arrester as specified in R 281.1236 on each carburetor of all gasoline engines.(b) At least 2 ducts fitted with cowls or their equivalent as specified in R 281.1237.(c) One power-operated whistle, capable of producing a blast of 2 seconds or more duration and audible a distance of at least 1 mile(d) One type I, II, or III coast guard-approved personal flotation device as specified in R 281.1234 in good and serviceable condition for each person aboard, plus 1 type IV throwable device. The devices shall be readily available and not encased in plastic bags or other containers.(e) At least 3 BI-type coast guard-approved hand portable fire extinguishers in good and serviceable condition as specified in R 281.1235. 1 BII-type coast guard-approved fire extinguisher may be substituted for 2 BI types. When a fixed fire extinguishing system is installed in the machinery space, 1 less BI-type fire extinguisher is required.(f) If underway between sunset and sunrise, the motorboat shall be equipped with an exhibit 1 white light aft, higher than the bowlight, showing all around the horizon and visible 2 miles, 1 white light forward showing 20 points and visible 2 miles, a green light to starboard 10 points and visible 1 mile, and a red light to port showing 10 points and visible 1 mile or, in lieu of this requirement, may display lights as specified by the international rules of the road.(g) If the motorboat is anchored between sunset and sunrise on the Great Lakes or waters connected thereto and not in a special anchorage area, a white light shall be displayed on the forward part of the motorboat to be visible to a boat approaching from any direction.(h) With lights as specified by R 281.1233.(i) With a muffler as specified by R 281.1238 for each motor.Mich. Admin. Code R. 281.1247