Washington( CNN) The Trump administration opened up a new salvo against sanctuary cities on Tuesday — moving to construct immigration enforcement a pre-condition for receiving key law enforcement awards.

Attorney General Jeff Sessions announced Tuesday evening that applicants for Edward Byrne Memorial Justice Assistance Grants will be required to certify that they’ll extended their cooperation to federal immigration enforcement more extensively than in the past, a move that is likely to generate court challenges rapidly from advocates and state and local jurisdictions who have opposed President Donald Trump’s efforts.

Among the requirements: Letting federal authorities access detainees in jails to inquire about immigration status and giving all federal departments 48 hours’ notification before any inmate they’re interested in is released.