California Code, Health and Safety Code - HSC § 1797.105

(a) The authority shall receive plans for the implementation of emergency medical services and trauma care systems from local EMS agencies.

(b) After the applicable guidelines or regulations are established by the authority, a local EMS agency may implement a local plan developed pursuant to Section 1797.250, 1797.254, 1797.257, or 1797.258 unless the authority determines that the plan does not effectively meet the needs of the persons served and is not consistent with coordinating activities in the geographical area served, or that the plan is not concordant and consistent with applicable guidelines or regulations, or both the guidelines and regulations, established by the authority.

(c) A local EMS agency may appeal a determination of the authority pursuant to subdivision (b) to the commission.

(d) In an appeal pursuant to subdivision (c), the commission may sustain the determination of the authority or overrule and permit local implementation of a plan, and the decision of the commission is final.