California Code, Health and Safety Code - HSC § 1798.162

(a) A local emergency medical services agency may implement a trauma care system only if the system meets the minimum standards set forth in the regulations for implementation established by the authority and the plan required by Section 1797.257 has been submitted to, and approved by, the authority. Prior to submitting the plan for the trauma care system to the authority, a local emergency medical services agency shall hold a public hearing and shall give adequate notice of the public hearing to all hospitals and other interested parties in the area proposed to be included in the system. This subdivision does not preclude a local EMS agency from adopting trauma care system standards which are more stringent than those established by the regulations.

(b) Notwithstanding subdivision (a) or any other provision of this article, the Santa Clara County Emergency Medical Services Agency may implement a trauma care system prior to the adoption of regulations by the authority pursuant to Section 1798.161. If the Santa Clara County Emergency Medical Services Agency implements a trauma care system pursuant to this subdivision prior to the adoption of those regulations by the authority, the agency shall prepare and submit to the authority a trauma care system plan which conforms to any regulations subsequently adopted by the authority.