Michigan Compiled Laws, Chapter 38. Civil Service and Retirement § 38.387

(a) By the eligible employee, the amount which he would have been required to contribute during the year as a member of the retirement system.

(b) By the state supported institution of higher education, from funds subject to its control, for the benefit of all eligible employees, those amounts as may be determined by the board of control plus an amount equal to that required by federal statutes as the employer's contributions under the federal insurance contribution act for that employee.

(c) From the eligible employee such amounts, in addition to those required under subdivisions (a) and (b), as may be determined by the board of control.