As part of the Fairfax County Fire and Rescue Department's EMS redesign, the following BLS units were upgraded to medic units at 0700 hours on January 3, 2009: Ambulance 430 to Medic 430, Ambulance 431 to Medic 431, and Ambulance 435 to Medic 435. Also effective January 3, 2009, Medics 402, 439, and 441 were reconfigured.