But Judge John Mendez put a third California sanctuary law on hold in his ruling Thursday.
California officials say their policies promote trust between immigrant communities and law enforcement. The administration says the state is allowing dangerous criminals to stay on the street.
The U.S. government sued the state in March as part of a broader effort to crackdown on sanctuary jurisdictions.
The lawsuit argued that the U.S. Constitution gives the federal government pre-eminent power to regulate immigration, and California can't obstruct immigration enforcement efforts.
Mendez said during a hearing in June that he wasn't convinced California intended to interfere with federal immigration enforcement.