The Community Clinics Advisory Committee provided for in subdivision (b) of Section 1226 shall meet on an ad hoc basis and shall be comprised of at least 15 individuals who are employed by, or under contract to provide service to, a community clinic on a full-time basis, either directly or as a representative of a clinic association. Members of the committee shall be appointed by the three statewide primary care clinic associations in California that represent the greatest number of community or free clinic sites.