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 Safety: Incorporation by Reference Update: American Petroleum Institute (API) Standards 5L and 1104

Direct final rule; confirmation of effective date.

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is confirming the effective date of April 14, 2009, for the direct final rule that appeared in the Federal Register on April 14, 2009. The direct final rule incorporated by reference the most recent editions of API Specification 5L, "Specification for Line Pipe" and API 1104, "Welding of Pipelines and Related Facilities."

View PDF