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.

Direct final rule (DFR); confirmation of effective date.

PHMSA is confirming the effective date for a DFR published in the Federal Register on April 24, 2026. The DFR amended PHMSA's regulations at 49 CFR part 192 to incorporate by reference the updated industry standard ASTM A372/A372M, Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels (ASTM A372/ A372M).

View PDF