Cal. Health and Safety Code § 25169.3

Before hazardous waste is transported from an abandoned site to another disposal site, all of the following conditions shall be met: (a) The department shall conduct such tests, or cause such tests to be completed by the responsible party, as are necessary to determine the general chemical and mineral composition of hazardous waste that is being transported. (b) The hazardous waste hauler shall prepare a transportation and safety plan outlining safety features and procedures to be used by the hauler to protect the public during the transportation process. (c) The department shall review and approve the transportation and safety plan. (d) The hazardous waste hauler shall, under penalty of perjury, certify that he or she will follow the provisions of the transportation and safety plan. (e) The department shall issue a certificate to the hazardous waste hauler certifying that the transportation and safety plan has been approved by the department. The person transporting the waste shall have the certificate in his or her possession while transporting the waste. Such certificate shall be shown upon demand to any department official, officer of the California Highway Patrol, or any local health officer. The term “abandoned site,” as used in this section, means an inactive waste disposal, treatment, or storage facility which cannot, with reasonable effort, be traced to a specific owner; a site whose owner is the subject of an order for relief in bankruptcy, or who has not taken corrective action on or before the date specified in an order issued pursuant to Section 25187; or a location where hazardous waste has been illegally disposed. (f) The requirements of this section shall not apply when the hazardous waste disposal is the direct result of an accidental spill or the department determines that emergency action is needed to protect the environment or the public health.