audits of those plans. The CPUC added these responsibilities to its long-standing authority and regulatory program for rail transit.
Following a November 7, 1990, multiple-fatality collision of two Atchison, Topeka, and Santa Fe Railway Co. (ATSF) trains near natural gas and petroleum pipelines, the NTSB recommended:
That the CPUC compile a 24-hour emergency phone number list for pipeline operators whose transmission lines are near ATSF property. Although the pipelines near this accident site were not involved in the casualties, the NTSB made the recommendations based on similar accidents where the pipelines became involved. The CPUC and ATSF completed this list in 1991.
Following a December 19, 1989, multiple fatality collision of an Amtrak train with a truck near Stockton, the NTSB issued the following recommendation to the CPUC:
Require the use of active warning devices in advance of railroad/highway grade crossings actuated by the railroad crossing warning system where sight distances are frequently reduced by dense fog. The CPUC has been requiring this installation on a case-by-case basis, and has been educating local jurisdiction personnel of the need for identification of dense fog areas and advance warning installations.