Gas Pipeline Safety: Views on Proposed Legislation to Reauthorize Pipeline Safety Provisions

The Pipeline Safety Improvement Act of 2002 established a risk-based program for gas transmission pipelines--termed integrity management--which requires pipeline operators to identify areas where the consequences of a pipeline incident would be the greatest, such as highly populated areas. Operators must assess pipelines in these areas for safety threats (such as corrosion), repair or replace defective segments, and reassess their pipelines at least every 7 years. Under the Pipeline and Hazardous Materials Safety Administration's (PHMSA) regulations, operators must reassess their pipelines for corrosion at least every 7 years and for all safety threats at least every 10, 15, or 20 years. State pipeline safety agencies that assist PHMSA are eligible to receive matching funds up to 50 percent of the cost of their pipeline safety programs. This statement is based on ongoing work for Congress and for others. It focuses on three areas germane to current legislative reauthorization proposals: (1) an overall assessment of the integrity management program, (2) the 7-year reassessment requirement, and (3) provisions to increase state pipeline safety grants. GAO contacted more than 50 pipeline operators and a broad range of stakeholders and surveyed state pipeline agencies. GAO also reviewed PHMSA and industry guidance and reviewed PHMSA pipeline performance data.