Mich. Comp. Laws § 333.21917: Registration while individual in military service or United States Public Health Service.

Sec. 21917.

The registration of an individual while in active service in the military service of the United States, an auxiliary branch of the military service of the United States, or the United States Public Health Service, who was registered at the time of induction or entering into service, continues in effect without further action by the individual until discharge or leaving the service as long as the individual remains in compliance with 42 USC 1396r(b)(5)(D).