Use of warning lights and siren in emergency medical vehicle response and patient transport. National Association of Emergency Medical Services Physicians (NAEMSP) and the National Association of State EMS Directors (NASEMSD).
D000552:Ambulances; D004632:Emergency Medical Services; D006801:Humans; D008029:Lighting / Q000592:standards*; D011482:Protective Devices / Q000592:standards* / Q000706:statistics & numerical data; D014187:Transportation of Patients