California Code, Public Utilities Code - PUC § 7673

(a) Provide a system map of the state to the Office of Emergency Services and to the Public Utilities Commission, showing practical groupings of mileposts on the system and showing mileposts of stations, terminals, junction points, road crossings, and the locations of natural gas and liquid pipelines in railroad rights-of-way.

(b) Annually submit to the Office of Emergency Services a copy of a publication which identifies emergency handling guidelines for the surface transportation of hazardous materials, except that if the railroad corporation is classified as a class I carrier by the Interstate Commerce Commission pursuant to Subpart A of Part 1201 of Subchapter C of Chapter X of the Code of Federal Regulations, the railroad corporation shall annually submit to the Office of Emergency Services 50 copies of this publication which the agency shall make available to the Public Utilities Commission and local administering agencies and to other response agencies. These guidelines shall not be considered comprehensive instructions for the handling of any specific incident.

(c) If there is a train incident resulting in a release or an overturned railcar or an impact which threatens a release of a hazardous material, provide the emergency response agency with all of the following information: