The bill mandates the development of a plan to end operations at the Massachusetts Alcohol and Substance Abuse Center (MASAC) as a secure facility for individuals committed for treatment of alcohol or substance use disorder by December 31, 2026. The Secretary of Health and Human Services is tasked with creating this plan, which must ensure that there is an adequate supply of licensed or approved facilities with sufficient bed capacity before MASAC ceases operations. The Secretary is also required to submit the plan to the clerks of the Senate and House of Representatives and the Joint Committee on Mental Health, Substance Use, and Recovery within 180 days of the bill's effective date, along with quarterly interim reports detailing progress, including census data and anticipated fiscal impacts.

The bill specifies that MASAC will be considered a secure facility under Section 35 of Chapter 123 of the General Laws until the aforementioned deadline or until the Secretary determines that adequate bed capacity exists. It emphasizes the importance of geographic distribution when identifying new facilities and requires ongoing evaluations of individuals committed under Section 35 to ensure their needs are met. The bill also highlights the need for enhanced security and clinical operations at alternative facilities to accommodate individuals with complex medical needs, histories of violence, or dual commitments, ensuring a smooth transition away from MASAC.