Health & Saf. Code, § 11150.3

(a) Notwithstanding any other law, if a substance listed in Schedule I of Section 11054 is excluded from Schedule I of the federal Controlled Substances Act and placed on a schedule of the act other than Schedule I, or if a product composed of one of these substances is approved by the federal Food and Drug Administration and either placed on a schedule of the act other than Schedule I, or exempted from one or more provisions of the act, so as to permit a physician, pharmacist, or other authorized healing arts licensee acting within their scope of practice, to prescribe, furnish, or dispense that product, the physician, pharmacist, or other authorized healing arts licensee who prescribes, furnishes, or dispenses that product in accordance with federal law shall be deemed to be in compliance with state law governing those acts.

(b) For purposes of this chapter, upon the effective date of any of the changes in federal law described in subdivision (a), notwithstanding any other state law, a product composed of the excluded substance may be prescribed, furnished, dispensed, transferred, transported, possessed, or used in accordance with federal law and is authorized pursuant to state law.

(c) This section does not apply to cannabis or a cannabis product, as defined in Section 26001 of the Business and Professions Code. However, cannabis or cannabis products may be authorized pursuant to Section 11150.2.