PHMSA HMR Adoption of DOT Special Permits 12412 and 11646

Current understanding

To be populated as evidence accumulates.

2026-08-04 — Hazardous Materials: Reducing Burdens by Allowing Continued Use of Department of Transportation Special Permit Packagings: cross-connection with phmsa-special-permit-packaging-continued-use: Related PHMSA pathway of incorporating special-permit provisions into standing use rather than requiring repeated permit action. (novelty: 2)
2026-08-04 — Hazardous Materials: Adoption of Department of Transportation Special Permits 12412 and 11646 Into the Hazardous Materials Regulations: Final rule permanently incorporates DOT Special Permits 12412 and 11646 into the HMR, eliminating renewal requirements while PHMSA asserts an equivalent level of safety is maintained. (novelty: 2)