Mich. Comp. Laws § 478.6

Sec. 6. All money received under the provisions of this act shall be placed to the credit of the commission. The legislature shall appropriate such money to the commission and the department of state police in a manner that is consistent with the requirement of section 4305 of the unified carrier registration act of 2005, 49 USC 14504a, that a state demonstrate that it uses an amount at least equal to the revenue derived from its participation in the unified carrier registration agreement for motor carrier safety programs, enforcement, and the administration of the uniform carrier registration plan and agreement.