Of the registered student groups, 40 are fraternities and sororities. Nine men's fraternities belong to the North American Interfraternity Conference; seven women's sororities belong to the National Panhellenic Conference; seven men's fraternities and ten women's sororities represent the National Multicultural Greek Council, and two others fall under the campus Raza Assembly and are unique to UCR. Thirteen percent of the undergraduate student body participates in Greek life, although chapter houses are not permitted. Including the Greek letter organizations, more than 60 student volunteer service organizations at UCR contribute to more than 100,000 hours of collective and individual service done in the community each year. Jewish student life has existed for over a decade through UCR Hillel.