United States Government Publishing Office publisher pbl distributor dst United States Government Accountability Office author aut Government Organization text government publication eng GAOREPORTS Legislative Agency Publications gao legislative 2010-08-12 U.S. Government Printing Office 2006-09-08 monographic deposited born digital 47 p. GA 1.13:GAO-06-945 https://www.govinfo.gov/app/details/GAOREPORTS-GAO-06-945 P0b002ee180391c44 f:d06945 DGPO 2010-08-12 2011-03-28 GAOREPORTS-GAO-06-945 machine generated eng fdlp REPORT GAOREPORTS-GAO-06-945 GAO-06-945 Corrosion Federal law Gas pipeline operations Program evaluation Risk assessment Safety regulation Safety standards Strategic planning Other Written Product A60487 The Pipeline Safety Improvement Act of 2002 requires that operators (1) assess gas transmission pipeline segments in about 20,000 miles of highly populated or frequently used areas by 2012 for safety threats, such as incorrect operation and corrosion (called baseline assessments), (2) remedy defects, and (3) reassess these segments at least every 7 years. Under the Pipeline and Hazardous Materials Safety Administration's (PHMSA) regulations, operators must reassess their pipeline segments for corrosion at least every 7 years and for all safety threats at least every 10, 15, or 20 years, based on industry consensus standards--and more frequently if conditions warrant. Operators must also carry out other prevention and mitigation measures. To meet a requirement in the 2002 act, this study addresses how the results of baseline assessments and other information inform us on the need to reassess gas transmission pipelines every 7 years and whether inspection services and tools are likely to be available to do so, among other things. In conducting its work, GAO contacted 52 operators that have carried out about two-thirds of the baseline assessments conducted to date. https://www.govinfo.gov/content/pkg/GAOREPORTS-GAO-06-945/html/GAOREPORTS-GAO-06-945.htm https://www.govinfo.gov/content/pkg/GAOREPORTS-GAO-06-945/pdf/GAOREPORTS-GAO-06-945.pdf GAO-06-945 https://www.govinfo.gov/app/details/GAOREPORTS-GAO-06-945 Other Written Product GAO-06-945; Natural Gas Pipeline Safety: Risk-Based Standards Should Allow Operators to Better Tailor Reassessments to Pipeline Threats; Corrosion Federal law Gas pipeline operations Program evaluation Risk assessment Safety regulation Safety standards Strategic planning