California Code, Health and Safety Code - HSC § 106965

(a) It shall be unlawful for any person to administer or use diagnostic or therapeutic x-ray on human beings in this state, unless that person has been certified or granted a permit pursuant to subdivision (b) or (c) of Section 114870, Section 114871, or pursuant to Section 114885, is acting within the scope of that certification or permit, and is acting under the supervision of a licentiate of the healing arts.

(b) It is unlawful for any person to perform mammography in this state unless that person has a current and valid certificate in mammographic radiologic technology issued pursuant to subdivision (b) of Section 114870, is acting within the scope of that certificate, and is acting under the supervision of a licentiate of the healing arts.This article does not authorize a person licensed under the Chiropractic Initiative Act to administer, use, or supervise the use of mammographic x-ray equipment.