The proposed bill, known as the "local government sanctuary policy prohibition act," aims to prevent local units of government in Michigan from enacting or enforcing any laws, ordinances, policies, or rules that restrict local officials from communicating or cooperating with federal authorities regarding the immigration status of individuals. It defines a "local unit of government" to include cities, villages, townships, and their respective boards and officials. Any existing laws that conflict with this act must be brought into compliance within 60 days of its effective date, and any such conflicting laws will be deemed void and unenforceable.

Furthermore, the bill establishes mechanisms for enforcement, allowing residents to take legal action against local governments that violate the act, either by filing a complaint with the attorney general or by bringing a lawsuit in circuit court. The attorney general is also empowered to investigate complaints and enforce the act. If a court finds that a local law violates the act, it can issue an injunction, require amendments or repeal of the law, and award damages and attorney fees to the complainant. Conversely, if a court finds in favor of the local government, it may award costs and attorney fees to the government.