Mich. Comp. Laws § 257.710a
No person shall sell, offer or keep for sale, or install for use in any motor vehicle to be operated on the highways of this state, any safety belt, safety restraining device, or attachments thereto as referred to in this section, unless of a type conforming to standards and specifications established by rules and regulations which have been established by the commissioner of the Michigan state police.
The rules and regulations established pursuant to the authorization given in this section shall be promulgated in accordance with the provisions of Act No. 88 of the Public Acts of 1943, as amended, being sections 24.71 to 24.82, inclusive, of the Compiled Laws of 1948, and subject to Act No. 197 of the Public Acts of 1952, as amended, being sections 24.101 to 24.110, inclusive, of the Compiled Laws of 1948.
MCL 257.710a