Chevron refinery fire tied to lax oversight

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Federal accident investigators urged a complete overhaul of California’s “patchwork” of oil industry regulations Friday at a state legislative hearing into the fire last year at Chevron’s Richmond refinery.

“This patchwork system of regulation has serious challenges,” said Don Holmstrom, who is leading the investigation for the U.S. Chemical Safety Board, adding that California’s ineffective regulatory efforts reflect weaknesses in federal and other state oversight programs.