The 2015 PRCS Summer Camp Guide is distributed through Loudoun County elementary schools PRCS centers and parks, county libraries and PRCS Administration. Registration begins March 24 and is ongoing. Online registration starts at 12:01 a.m. Early walk-in registration at 7:00 a.m. will be offered at two sites on March 24: Dulles South Multipurpose Center and PRCS Administration. Walk-in registration at all other PRCS locations takes place during normal operating hours.