Transportation Department, Pipeline and Hazardous Materials Safety Administration
This final rule removes undue regulatory burdens by allowing regulated entities to use a reduced sized marking for limited quantity shipments of hazardous materials by highway, rail, or vessel.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation Pipeline and Hazardous Materials Safety Administration 49 CFR Parts 172 and 173 [Docket No. PHMSA-2025-0090 (HM-268B)] RIN 2137-AG04 AGENCY: Pipeline and Hazardous Materials Safety Administration (PHMSA), Department of Transportation (DOT) ACTION: Final rule. SUMMARY: This final rule removes undue regulatory burdens by allowing regulated entities to use a reduced sized marking for limited quantity shipments of hazardous materials by highway, rail, or vessel. DATES: This final rule is effective September 3, 2026. FOR FURTHER INFORMATION CONTACT: Jose Cajar, Standards and Rulemaking Division, Pipeline and Hazardous Materials Safety Administration (PHMSA), 1200 New Jersey Avenue SE, Washington, DC 20590, 202-366-8553, jose.cajar@dot.gov . I. PHMSA Action A. What action is PHMSA taking in this Final Rule? Currently, 49 CFR 172.315 specifies the marking requirements for limited quantities of hazardous materials, with paragraph (a)(2) of this section detailing the minimum size requirements. PHMSA is revising 49 CFR 172.315(a)(2) to allow regulated entities to use a reduced sized limited quantity marking on a package shipping label for certain shipments of hazardous materials in modes other than aircraft. PHMSA is also revising 49 CFR 173.25(a)(6) to specifically state that this marking is not authorized on an overpack. B. Does this action apply to me? Effective 30 days after publication of this final rule, persons subject to the limited quantitie…
Other Federal Register documents from the same docket.
Citation: 91 FR 49332
