Health and Safety Code – HSC § 1797.153
(a) In each operational area the county health officer and the local EMS agency administrator may act jointly as the medical health operational area coordinator (MHOAC). If the county health officer and the local EMS agency administrator are unable to fulfill the duties of the MHOAC they may jointly appoint another individual to fulfill these responsibilities. If an operational area has a MHOAC, the MHOAC in cooperation with the county office of emergency services, local public health department, the local office of environmental health, the local department of mental health, the local EMS agency, the local fire department, the regional disaster and medical health coordinator (RDMHC), and the regional office of the Office of Emergency Services, shall be responsible for ensuring the development of a medical and health disaster plan for the operational area. The medical and disaster plans shall follow the Standard Emergency Management System and National Incident Management System. The MHOAC shall recommend to the operational area coordinator of the Office of Emergency Services a medical and health disaster plan for the provision of medical and health mutual aid within the operational area.
(b) For purposes of this section, “operational area” has the same meaning as that term is defined in subdivision (b) of Section 8559 of the Government Code .
(c) The medical and health disaster plan shall include preparedness, response, recovery, and mitigation functions consistent with the State Emergency Plan, as established under Sections 8559 and 8560 of the Government Code , and, at a minimum, the medical and health disaster plan, policy, and procedures shall include all of the following:
(1) Assessment of immediate medical needs.
(2) Coordination of disaster medical and health resources.
(3) Coordination of patient distribution and medical evaluations.
(4) Coordination with inpatient and emergency care providers.
(5) Coordination of out-of-hospital medical care providers.
(6) Coordination and integration with fire agencies personnel, resources, and emergency fire prehospital medical services.
(7) Coordination of providers of nonfire based prehospital emergency medical services.
(8) Coordination of the establishment of temporary field treatment sites.
(9) Health surveillance and epidemiological analyses of community health status.
(10) Assurance of food safety.
(11) Management of exposure to hazardous agents.
(12) Provision or coordination of mental health services.
(13) Provision of medical and health public information protective action recommendations.
(14) Provision or coordination of vector control services.
(15) Assurance of drinking water safety.
(16) Assurance of the safe management of liquid, solid, and hazardous wastes.
(17) Investigation and control of communicable disease.
(d) In the event of a local, state, or federal declaration of emergency, the MHOAC shall assist the agency operational area coordinator in the coordination of medical and health disaster resources within the operational area, and be the point of contact in that operational area, for coordination with the RDMHC, the agency, the regional office of the agency, the State Department of Public Health, and the authority.
(e) Nothing in this section shall be construed to revoke or alter the current authority for disaster management provided under either of the following:
(1) The State Emergency Plan established pursuant to Section 8560 of the Government Code .
(2) The California standardized emergency management system established pursuant to Section 8607 of the Government Code .