Cal. Health & Safety Code § 118029

(a) On or before September 1, 1993, and each year thereafter on or before July 1, a registered hazardous waste transporter which transports medical waste shall so notify the department, and provide the following information: (1) Business name, address, and telephone number. (2) Name of owner, operator, and contact person. (3) Hazardous waste transporter registration number. (4) Vehicle manufacturer name, vehicle model year, vehicle identification number, and the license plate number of each vehicle transporting medical waste.

(c) On or before September 1, 1993, each registered hazardous waste transporter, and each provider of medical waste mail back systems, as defined in subdivision (b) of Section 118245, shall provide to the department a list of all medical waste generators serviced by that person during the previous 12 months. That list shall include the business name, business address, mailing address, telephone number, and other information as required by the department to collect annual fees pursuant to Section 117924. When the transportation of registered hazardous waste by a medical waste transporter or the provision of a medical waste mail back system begins after September 1, 1993, the initial list shall be provided to the department within 10 days of the close of the earliest calendar quarter ending September 30, December 31, March 31, or June 30, or as otherwise required by the department.