USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Inspection Reassessment Intervals Guidance for Less Than 7 Years

Because of inconsistencies and misunderstandings in determining pipeline integrity reassessment intervals, and considering the data and information that should be reviewed in determining such intervals, the Pipeline and Hazardous Materials Safety Administration (PHMSA) has produced guidelines to assist PHMSA and state inspectors, operating companies, and the public in determining reassessment intervals.

DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact
Effective Date: Saturday, October 1, 2016
Issued Date: Saturday, October 1, 2016