This chapter is to provide for the public health, safety and welfare in the use of emergency ambulance and other pre-hospital care resources by the establishment of effective standards for the operation, equipment, and personnel of pre-hospital emergency care services. This chapter does not cover wheelchair vans, gurney cars, or similar nonemergency vehicles or operations or to vehicles not requiring an emergency vehicle permit from the California Highway Patrol. This chapter shall be liberally construed for the accomplishment of these purposes.