California Code, Health and Safety Code - HSC § 1797.226

(a) That a minor alteration in the level of life support personnel or equipment, which does not significantly reduce the level of care available, shall not constitute a change in the manner and scope of providing services.

(b) That a successor to a previously existing emergency services provider shall qualify as an existing provider if the successor has continued uninterrupted the emergency transportation previously supplied by the prior provider.