Michigan Compiled Laws, Chapter 418. Worker's Disability Compensation § 418.501a

Sec. 501a. (1) The liability of the self-insurers' security fund under this act for any payment of claims made against a self-insured member of a private employer group self-insurer terminates on January 1, 2020. The PEGSISF is responsible for payment of eligible claims made against the PEGSISF on and after January 1, 2020, and for claims against a private employer group self-insurer for which the self-insurers' security fund was formerly liable under this act.

(2) If the director determines that a trust established under R 408.43s(2) of the Michigan administrative code is reasonably likely to be insufficient to fulfill the liability for claims made against the self-insured members of a private employer group self-insurer before January 1, 2020, the director may assess all private employer group self-insurers based on the proportion of the total paid losses, as defined in section 551(3)(b),  1 of each private employer group self-insurer paid in the prior year to cover the cost of benefits incurred. An assessment made under this subsection is payable to the trust to satisfy liability for those claims.