Cal. HSC § 117900

No person shall haul medical waste unless the person is one of the following: (a) A registered hazardous waste hauler pursuant to the requirements of Chapter 6.5 (commencing with Section 25100) of Division 20. (b) A mail-back system approved by the United States Postal Service. (c) A common carrier allowed to haul pharmaceutical waste pursuant to Section 118029 or 118032. (d) A small quantity generator or a large quantity generator transporting limited quantities of medical waste with an exemption granted pursuant to either Section 117946 or Section 117976, respectively. (e) A registered trauma scene waste practitioner hauling trauma scene waste pursuant to Section 118321.5.