An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
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.
Advance notice of proposed rulemaking; extension of comment period.
NHTSA received two requests to extend the comment period for the Advance Notice of Proposed Rulemaking (ANPRM) regarding side underride guards that NHTSA published on April 21, 2023. The comment period for the ANPRM was scheduled to end on June 20, 2023. NHTSA is extending the comment period for the ANPRM by 30 days.