California Code, Business and Professions Code - BPC § 1925

A registered dental hygienist in alternative practice may practice, pursuant to subdivision (a) of Section 1907, subdivision (a) of Section 1908, subdivisions (a) and (b) of Section 1910, Section 1910.5, and Section 1926.05 as an employee of a dentist or of another registered dental hygienist in alternative practice, as an independent contractor, as a sole proprietor of an alternative dental hygiene practice, in a primary care clinic or specialty clinic that is licensed pursuant to Section 1204 of the Health and Safety Code, in a primary care clinic exempt from licensure pursuant to subdivision (c) of Section 1206 of the Health and Safety Code, in a clinic owned or operated by a public hospital or health system, in a clinic owned and operated by a hospital that maintains the primary contract with a county government to fill the county's role under Section 17000 of the Welfare and Institutions Code, or in a professional corporation under the Moscone-Knox Professional Corporation Act (commencing with Section 13400) of Part 4 of Division 3 of Title 1 of the Corporations Code.