California Code, Business and Professions Code - BPC § 1242

Any person duly licensed under the provisions of this chapter to perform tests called for in a clinical laboratory may perform skin tests for specific diseases, arterial puncture, venipuncture, or skin puncture for purposes of withdrawing blood or for clinical laboratory test purposes as defined by regulations established by the department and upon specific authorization from any person in accordance with the authority granted under any provisions of law relating to the healing arts.