(2) An ordinance of any political subdivision regulating ambulance services, emergency medical services providers or organ transport vehicles may not require less than is required under ORS 820.300 to 820.380, or this chapter or the rules adopted by the Oregon Health Authority under this chapter.
(3) When a political subdivision enacts an ordinance regulating ambulance services, emergency medical services providers or organ transport vehicles, the ordinance must comply with the county plan for ambulance services and ambulance service areas adopted under ORS 682.062 by the county in which the political subdivision is situated and with the rules of the Oregon Health Authority relating to such services and service areas. The county governing body shall make the determination of whether the ordinance is in compliance with the county plan.