Pipeline and Hazardous Materials Safety Administration
49 CFR Parts 172 and 173
[Docket No. PHMSA–2025–0104 (HM–268P)]
RIN 2137–AG18 Hazardous Materials: Adoption of Department of Transportation Special Permit 21478
ACTION: Final rule.
SUMMARY: This final rule removes undue regulatory burdens by adopting the provisions of U.S. Department of Transportation (DOT) special permit (SP) 21478 to allow empty intermediate bulk containers (IBCs) that only contain the residue of a hazardous material to be transported without shipping papers, placards, and United Nations (UN) identification (ID) numbers.
DATES: This final rule is effective September 3, 2026.
READ MORE: https://www.govinfo.gov/content/pkg/FR-2026-08-04/pdf/2026-15820.pdf