Prohibiting subdivisions and local entities from adopting policies that prohibit or restrict cooperation with federal immigration law enforcement.

HB 4596 prohibits local governments (like cities, counties, and law enforcement agencies) from adopting policies that restrict cooperation with federal immigration enforcement. The bill requires these entities to comply with federal immigration law enforcement or risk losing state funding - specifically, they have 90 days to fix violations after notice, and face funding denial for the next fiscal year if a court rules they intentionally violated the law. It directly affects local jurisdictions that might have previously limited information-sharing or collaboration with federal immigration authorities. The law aims to ensure local entities do not obstruct federal immigration enforcement efforts through policy.