J. J. Keller® Compliance Network Logo
Start Experiencing Compliance Network for Free!
Update to Professional Trial!
Already have an account?
Thank you for investing in EnvironmentalHazmat related content. Click 'UPGRADE' to continue.
Enjoy your limited-time access to the Compliance Network Professional Trial!
A confirmation welcome email has been sent to your email address from ComplianceNetwork@t.jjkellercompliancenetwork.com. Please check your spam/junk folder if you can't find it in your inbox.
Thank you for your interest in EnvironmentalHazmat related content.
You've reached your limit of free access, if you'd like more info, please contact us at 800-327-6868.
How changes are made to the US Hazardous Materials Regulations
  • All rules that change the HMR are issued by PHMSA in a process involving multiple rounds of notifications, comments, and revisions.

The Pipeline and Hazardous Materials Safety Administration (PHMSA) issues all rules that change the Hazardous Materials Regulations (HMR).

PHMSA often issues an Advanced Notice of Proposed Rulemaking (ANPRM) that discusses suggested changes and requests comments on the possible options.

If the changes are not very complicated, or after comments from an ANPRM have been reviewed, a Notice of Proposed Rulemaking (NPRM) is issued. The NPRM has the exact wording and changes as they could appear in a final rule. Comments on the proposed changes are requested.

After comments on an NPRM are reviewed, a final rule is issued. This contains the changes to the regulations. The changes may become effective on the date of publication or at a date specified in the rulemaking. The date when the changes become effective is when the regulations actually change. Compliance with the changes may be mandatory on the effective date, or it could be delayed, in some cases for several years.

Even after the final rule is issued, comments can still be submitted, and appropriate changes may be made by PHMSA. If these changes are made, they will be issued in another final rule.