Every emergency medical care committee shall, at least annually, report to the authority, and the local EMS agency its observations and recommendations relative to its review of the ambulance services, emergency medical care, and first aid practices, and programs for training people in cardiopulmonary resuscitation and lifesaving first aid techniques, and public participation in such programs in that county. The emergency medical care committee shall submit its observations and recommendations to the county board or boards of supervisors which it serves and shall act in an advisory capacity to the county board or boards of supervisors which it serves, and to the local EMS agency, on all matters relating to emergency medical services as directed by the board or boards of supervisors.