Exemptions

A vessel shall not be required to be numbered under this act if it is: (1) Already covered by a number in full force and effect which has been awarded to it pursuant to federal law or a federally approved numbering system of another state, if such boat has not been within this state for a period in excess of 60 consecutive days. (2) A vessel from a country other than the United States temporarily using the waters of this state. (3) A vessel whose owner is the United States, a state or a subdivision thereof. (4) A ship's lifeboat. (5) A vessel belonging to a class of boats which has been exempted from numbering by the secretary if it is determined that the numbering of vessels of such class will not materially aid in their identification; and, if an agency of the federal government has a numbering system applicable to the class of vessels to which the vessel in question belongs, after the secretary has further found that the vessel would also be exempt from numbering if it were subject to the federal law. (6) Vessel documented by the United States coast guard or federal agency successor thereto.