Mich. Comp. Laws § 38.868

Sec. 18. There are hereby authorized to be appropriated annually to the contribution fund, in addition to the contributions collected and paid into the contribution fund under sections 5, 11 and 12, to be available for the purposes of section 15 and section 16 until expended, such additional sums as are found to be necessary in order to make the payments to the secretary of the treasury of the United States which the state is obligated to make pursuant to the agreement entered into under section 3.