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 peace officers or local officials from communicating or cooperating with federal officials regarding the immigration status of individuals. It defines a "local unit of government" to include counties, cities, villages, townships, and related bodies. 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.

The bill also establishes mechanisms for enforcement and accountability. Residents of a local unit of government can take legal action against any violations, and the attorney general is empowered to investigate complaints and enforce compliance. If a court finds that a local law violates this act, it can issue an injunction, require amendments or repeals of the offending law, and award damages to the complainant. Additionally, elected or appointed officials who knowingly violate this act may face civil fines ranging from $2,500 to $7,500, which are separate from other legal penalties.