Cal. Health & Safety Code § 111385

Any drug or device is misbranded if the department determines that the drug or device is liable to deterioration, unless it is packaged in that form and manner and its label bears a statement of the precautions, as the department, by regulation, may require as necessary for the protection of public health. Such regulations shall not be established for any drug or device recognized in an official compendium, unless the department has informed the appropriate body, charged with the revision of the official compendium, of the need for that packaging or labeling requirements and that body has not prescribed the requirements in a reasonable length of time.