Ambulance. A specially designed vehicle for transporting the sick or injured that contains a stretcher, linens, first aid supplies, oxygen equipment, and such lifesaving equipment required by state and local law, and that is staffed by personnel trained to provide first aid treatment.
32 CFR § 199.2
General. In an effort to be as specific as possible as to the word and intent of CHAMPUS, the following definitions have been developed. While many of the definitions are general and some assign meaning to relatively common terms within the health insurance environment, others are applicable only to CHAMPUS; however, they all appear in this part solely for the purpose of the Program. Except when otherwise specified, the definitions in this section apply generally throughout this part.