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

Pipeline Construction: FAQS


These Frequently Asked Questions (FAQs) and their responses are intended to provide insight into PHMSA's approach to the issues they describe. They are intended to facilitate understanding of the code, enhance communication with all stakeholders, and provide information to operators concerning PHMSA's inspection approach.

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: Friday, June 15, 2012