Natural Gas: Pipeline Safety Enhancement Plans

On February 24, 2011, the CPUC opened a rulemaking to establish a new model of natural gas pipeline safety regulations in the wake of the San Bruno pipeline explosion in 2010. California’s investor owned natural gas utilities must submit individual plans for addressing pipeline safety issues. DRA is reviewing and submitting testimony on these plans, including the costs and rate impacts of safety upgrades. 

In August 2011, California's natural gas utilities submitted their Pipeline Safety Enhancement Plans (PSEP) as required by the CPUC's June 2011 decision on testing and replacing pipelines, which addressed four key areas:  1) Pipeline Modernization; 2) Valve Automation; 3) Pipeline Records Integration; and 4) Interim Safety Enhancement. 


Statewide Issues

General Order 112

In 2013, the CPUC initiated a process to update its General Order 112 (GO 112), which governs general gas system operations for utilities in California. 


By Utility

Pacific Gas and Electric Company (PG&E)  

PG&E Initial PSEP  

PG&E PSEP Update  

PG&E PSEP in 2015-2017 Gas Transmission & Storage Rate Case 


Southern California Gas Company (SoCalGas) 

Pipeline Safety Enhancement Plan  

Pipeline Safety Implementation Costs 


San Diego Gas & Electric (SDG&E) 

Pipeline Safety Enhancement Plan 

Pipeline Safety Implementation Costs 


Southwest Gas Company 




Other Resources

The CPUC in October 2010 formed an Independent Review Panel of experts to conduct a comprehensive study and investigation of the San Bruno explosion, including the root causes and recommendations for actions by the CPUC to prevent similar accidents. 

See the Independent Review Panel's Report 


A Proposed Decision was issued on November 19, 2012 in compliance with Public Utilities Code Sections 961 and 963, and amending General Order 112-E to add whistleblower protections.