Mich. Comp. Laws § 324.82143: Implied consent to chemical tests; circumstances; exception; administration of chemical test.

Sec. 82143.

(1) A person who operates a snowmobile is considered to have given consent to chemical tests of his or her blood, breath, or urine for the purpose of determining the amount of alcohol or presence of a controlled substance, or both, in his or her blood in all of the following circumstances:

(a) The person is arrested for a violation of section 82127(1), (3), (4), (5), (6), or (7) or a local ordinance substantially corresponding to section 82127(1), (3), or (6).

(b) The person is arrested for negligent homicide, manslaughter, or murder resulting from the operation of a snowmobile, and the peace officer had reasonable grounds to believe that the person was operating the snowmobile in violation of section 82127.

(2) A person who is afflicted with hemophilia, diabetes, or a condition requiring the use of an anticoagulant under the direction of a physician shall not be considered to have given consent to the withdrawal of blood.

(3) A chemical test described in subsection (1) shall be administered as provided in sections 82137 and 82138.