The Monthly Meeting is the basic unit of organization of the Religious Society of Friends. Individuals hold membership in the Monthly Meeting, and that is where the responsibility resides for pastoral care, religious education, and worship.
The members of Monthly Meetings also constitute Yearly and Quarterly Meetings. Orange County Friends Meeting is part of Pacific Yearly Meeting, which has two Quarterly Meetings, College Park Quarterly Meeting, and Southern California Quarterly Meeting.
The names of these assemblies reflect how often they meet, not a hierarchy of authority