Mich. Comp. Laws § 32.1056: Punishment and sentence; limits.

Sec. 56.

The punishment which a court-martial may direct for an offense shall not exceed the limits prescribed by this code. If a sentence exceeds the limits prescribed by this code, the part of the sentence in excess of the limits shall have no force and effect and the sentence shall automatically be reduced to the limits prescribed by this code and shall not be changed as to form of punishment.