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.

Site Notification

Site Notification

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

Archived Rulemaking: Transportation of Hazardous Materials; Miscellaneous Amendments; Correction and Response to Petitions for Reconsideration

55fr-27640.pdf (533.53 KB)

In this final rule, RSPA is amending 49 CFR '173.31(a)(5) to extend the compliance date for having vertical restraints systems on certain DOT specification tank cars from November 15, 1990 to November 15.1992. This amendment is based on the merits of petitions for reconsideration. The effect of this action is to minimize operational impacts on affected tahk car shippers and owners by providing an extended implementation period for equipping non-conforming tank cars with the required shelf couplers. RSPA is also amending 49 CFR 179.300-7(a), to restore regulatory text that was inadvertently deleted in a final rule issued tinder Docket HM-166W .(54 FR 38790; September 20,1989).

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
Last updated: Monday, September 17, 2018