DEPARTMENT OF TRANSPORTATION

January 29th, 2026

Pipeline and Hazardous Materials Safety Administration

49 CFR Parts 106, 107, 171, 172, 173, 174, 175, 176, 177, 178, 179, and 180

[Docket No. PHMSA–2024–0065 (HM–267)]

RIN 2137–AF69

Hazardous Materials: Modernizing Regulations To Facilitate Transportation of Hazardous Materials Integral to Spacecraft Components and Payloads

ACTION: Advance notice of proposed rulemaking (ANPRM).

SUMMARY: PHMSA is publishing this ANPRM to solicit feedback on streamlining and modernizing the Agency’s regulations as they relate to the transportation of hazardous materials integral to spacecraft payloads or components.

DATES: Comments must be received by April 29, 2026. However, PHMSA will consider late-filed comments to the extent possible.

READ MORE: https://www.govinfo.gov/content/pkg/FR-2026-01-29/pdf/2026-01758.pdf