Cal. Health & Saf. Code § 118027
A person who is authorized to collect solid waste, as defined in Section 40191 of the Public Resources Code, who unknowingly transports medical waste to a solid waste facility, as defined in Section 40194 of the Public Resources Code, incidental to the collection of solid waste, is exempt from the provisions of the Medical Waste Management Act with regard to that waste. If a solid waste transporter discovers that he or she has hauled untreated medical waste to a landfill or materials recovery facility, he or she shall contact the originating generator of the medical waste to respond to the landfill or recovery facility to provide ultimate proper disposal of the medical waste. The solid waste facility operator may, at its discretion and after contacting the generator, make arrangements for the proper treatment and disposal of the medical waste at a facility approved by the department. Title to the waste remains with the generator. Reimbursement costs for the proper management of discovered waste shall be the originating generator's responsibility.
Ca. Health and Saf. Code § 118027