Cal. Health & Safety Code § 118275
(a) To containerize or store medical waste, at the point of generation and while collected in that room, a person shall do all of the following:
(6) Pharmaceutical waste, as defined in paragraph (3) of subdivision (b) of Section 117690, shall be segregated for storage in accordance with the facility’s medical waste management plan. When this waste is prepared for shipment offsite for treatment, it shall be properly containerized for shipment in compliance with United States Department of Transportation and the United States Drug Enforcement Administration (DEA) requirements.
(7) A person may consolidate into a common container, which may be reusable, sharps waste, as defined in paragraph (4) of subdivision (b) of Section 117690, and pharmaceutical wastes, as defined in paragraph (3) of subdivision (b) of Section 117690, provided that both of the following apply: