Pipeline and Hazardous Materials Safety Administration
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: 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.
READ MORE: https://www.govinfo.gov/content/pkg/FR-2026-08-04/pdf/2026-15805.pdf