DEPARTMENT OF TRANSPORTATION

49 CFR Parts 172 and 173

[Docket No. PHMSA–2025–0090 (HM–268B)]

RIN 2137–AG04

Hazardous Materials: Reducing Costs to Domestic Shippers and Carriers of Limited Quantities

ACTION: Notice of proposed rulemaking (NPRM).

SUMMARY: This NPRM proposes to remove undue regulatory burdens by allowing for a reduced sized marking for limited quantity shipments of hazardous materials.

DATES: Comments must be received on or before September 2, 2025.

READ MORE: https://www.govinfo.gov/content/pkg/FR-2025-07-01/pdf/2025-12127.pdf