Special requirements - California

The state of California requires any carrier required to display hazard warning placards to be equipped with a two-way communication device, maintained in good working order, which enables the driver to contact the personnel responsible for the safety operations of the motor carrier in the event of an emergency. A two-way communication device is considered a radio, cellular telephone, or other similar device that permits communication between two entities. For additional information, refer to California Vehicle Code (CVR), Division 14.1 Transportation of Hazardous Materials, Chapter 1, Section 32001.

Any person who dumps, spills, or causes the release of hazardous material or hazardous waste upon any highway must notify the California Highway Patrol or the agency having traffic jurisdiction for that highway of the dump, spill, or release as soon as the person has knowledge of the dump, spill, or release.