The bill proposes the addition of a new chapter, Chapter 166, titled "Detention for Federal Civil Immigration Violations," to Title 42 of the General Laws, which deals with state affairs and government. The bill explicitly prohibits state or municipal governmental officials, bodies, instrumentalities, or agencies from entering into or renewing contracts or agreements for the purpose of detaining individuals for federal civil immigration violations. It mandates that any existing contracts or agreements used for detaining individuals on the basis of federal civil immigration violations must be terminated by July 1, 2025.

Furthermore, the bill prohibits the use of public resources, including the sale, lease, or disposal of property, as well as the use of governmental funds or assets, to facilitate the establishment or operation of facilities that detain individuals for federal civil immigration violations. It also bans the receipt of payments related to such facilities and any financial incentives or benefits connected with their operation. The bill includes a severability clause to ensure that if any part of the chapter is found unconstitutional or invalid, the remainder will still be in effect. The act would take effect immediately upon passage.