Cal. Health & Safety Code § 107155

(a) Any person not currently licensed as a physician and surgeon pursuant to Chapter 5 (commencing with Section 2000) of Division 2 of the Business and Professions Code, or as a clinical laboratory technologist, bioanalyst, or clinical chemist pursuant to Chapter 3 (commencing with Section 1200) of Division 2 of the Business and Professions Code, who performs nuclear medicine technology shall be subject to the standards of competence established by the department pursuant to this article.
(b) Nothing in this article shall be construed to limit the existing authority of, or scope of practice of, a physician and surgeon, clinical laboratory technologist, bioanalyst, or clinical chemist granted pursuant to their licenses, or to further require persons to establish competence to perform in vitro tests.
(c) In vitro procedures using radioactive materials shall be performed in a licensed clinical laboratory.
(d) This article shall not apply to any of the following persons:
1. (1) Any person employed by an agency of the United States government, while performing the duties of the employment.
2. (2) A licensed clinical laboratory technologist who administers a radioactive marker test substance to a human subject to perform a measurement on a sample containing the radioactive marker test substance that has been removed from the subject.
3. (3) A registered pharmacist who handles radioactive drugs in accordance with the California State Board of Pharmacy regulations contained in the most recent version of Sections 1708.3 to 1708.8, inclusive, of Article 2 of Chapter 17 of Title 16 of the California Code of Regulations.
4. (4)
  1. (A) A person who holds a current, valid certificate in diagnostic radiologic technology pursuant to subdivision (b) of Section 114870 may perform a positron emission tomography scan only on a dual mode machine on which both a positron emission tomography scan and a computerized tomography scan may be performed if both of the following conditions are met:
    1. (i) The person holds a current, valid certificate in positron emission tomography issued by the Nuclear Medicine Technology Certification Board, or a similarly recognized organization, has registered with the department pursuant to Section 106977 as participating in on-the-job training to meet clinical competencies required by the Nuclear Medicine Technology Certification Board, or a similarly recognized organization, and is under the direct supervision of a person who currently meets the standards of competence for the performance of nuclear medicine technology, or complies with the regulations issued by the department governing students of nuclear medicine technology in order to obtain a current, valid certificate in positron emission tomography issued by the Nuclear Medicine Technology Certification Board.
    2. (ii) The person is under the supervision of a person who is an authorized user identified on a specific license authorizing medical use of radioactive materials pursuant to the Radiation Control Law (Chapter 8 (commencing with Section 114960) of Part 9).
  2. (B) A violation of this paragraph is a misdemeanor pursuant to Section 107075 and a violator is subject to discipline pursuant to Sections 107065 and 107070.