D.C. Mun. Regs. tit. 29, § 520
520.1 The purpose of the Emergency Ambulance Service is to provide a twenty-four (24) hour citywide emergency ambulance service for the District of Columbia through the cooperation of the various hospitals and District government agencies.
520.2 The Emergency Ambulance Service shall be restricted to emergency cases and shall not include transportation of non-emergency cases.
520.3 Fire Department ambulances, when not on fire duty, may be dispatched in the Emergency Ambulance Service.
520.4 Fire Department rescue squads shall handle all cases requiring the service of trained experts, such as removing persons who may be trapped or those cases requiring mechanical skills or equipment.
520.5 Insofar as possible, the dispatcher shall call the ambulance that is nearest to the emergency.
520.6 Any ambulance in the District may transport communicable disease cases.
SOURCE: Rules of the Board of Public Welfare issued July 28, 1950; as amended on September 29, 1950.