Bulletin 2026-21-INS: Eligibility for Reimbursement under MCL 500.3157(4)(a), MCL 500.3157(4)(b), MCL 500.3157(5), and MCL 500.3157(6) (supersedes Bulletin 2025-24-INS & Bulletin 2021-34-INS)

This bulletin, issued and entered on August 25, 2026 by Anita G. Fox, Director of the Michigan Department of Insurance and Financial Services, addresses eligibility for reimbursement under MCL 500.3157(4)(a), MCL 500.3157(4)(b), MCL 500.3157(5), and MCL 500.3157(6). It supersedes Bulletin 2025-24-INS and Bulletin 2021-34-INS. The bulletin provides guidance on the reimbursement eligibility criteria for medical services under Michigan’s no-fault insurance system, clarifying which providers and services qualify for reimbursement under the specified statutory provisions. The bulletin is directed to all insurers, health maintenance organizations, and self-insurers subject to the provisions of the Insurance Code and the no-fault insurance provisions of the Michigan Compiled Laws. The guidance addresses changes in the law and provides updated instructions for calculating and processing reimbursement claims under the Michigan no-fault insurance system.