Pipeline and Hazardous Materials Safety Administration
49 CFR Parts 171 and 173
[Docket No. PHMSA–2025–0101 (HM–268M)]
RIN 2137–AG15
Hazardous Materials: Adoption of Department of Transportation Special Permit 21287
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) 21287 to streamline the transportation of refrigerating machines—including common household appliances like refrigerators, window-mounted air-conditioning units, and dehumidifiers—that contain small quantities of certain low flammability refrigerant gases.
DATES: Effective date: This final rule is effective August 19, 2026.
READ MORE: https://www.govinfo.gov/content/pkg/FR-2026-08-04/pdf/2026-15817.pdf