The U.S. Department of Justice agreed Wednesday not to pursue a suit charging the state police with racial bias in the stopping, searching and arresting of motorists on New Jersey’s toll roads, in return for the agency’s promise to overhaul its training and procedures.

The 48-page consent decree between state Attorney General John Farmer Jr. and Bill Lann Lee, head of the Division of Civil Rights, was filed in U.S. District Court in Trenton. It requires court approval and also calls for the appointment of an independent monitor who will report regularly to the judge overseeing the case.