2025 Senate Bill 400

Insurance: health insurers; prior authorization for certain opioid use disorder and alcohol use disorder medications; prohibit.

A bill to amend 1956 PA 218, entitled “The insurance code of 1956,” (MCL 500.100 to 500.8302) by adding section 3406ww.

AI Analysis – Experimental

SB-400 prohibits Michigan health insurers from requiring prior authorization for medications treating opioid or alcohol use disorders, thereby improving access to these treatments.

Introduced in the Senate

June 11, 2025

Introduced by Sens. Kevin Hertel (D-12) and Sylvia Santana (D-2)

Referred to the Committee on Health Policy

June 25, 2025

Reported without amendment

June 26, 2025

Referred to the Committee of the Whole

July 1, 2025

Reported without amendment

Passed in the Senate 36 to 0 (details)

Received in the House

July 1, 2025

Referred to the Committee on Insurance