Pipeline integrity management and corrosion control

Pipeline integrity management is one way of addressing integrity and environmental concerns in high-consequence areas. For liquid pipelines, the U.S. Department of Transportation addresses pipeline integrity management in the U.S. Code of Federal Regalations (CFR) Title 49 Part 195. Currently under development are the rules for gas pipelines in 49 CFR Part 192. The most prevelent time-dependent threat to a pipeline is corrosion. Corresion can occur both externally and internally. When a pipe is excavated, external corresion can be obvious; however, internal corresion can remain undetected.