# Regulus search export

- Query: `90 FR 28552`
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- Exported: 2026-08-26T11:57:20.896Z

## 1. Hazardous Materials: Adoption of Department of Transportation Special Permit 21379

**Citation:** 90 FR 28552  
**Type / status:** rulemaking / proposed  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** Not stated / 2025-07-01

This NPRM proposes to adopt the provisions of DOT special permit (SP) 21379 into the hazardous materials regulations to streamline the transportation of large refrigerating machines filled with flammable gases.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2025/07/01/2025-12100/hazardous-materials-adoption-of-department-of-transportation-special-permit-21379>
- Source ID: `federal-register`
- SHA-256: `ec62aeac52066a75e520501bc0f3d0ee6f49d94aeb186fc4430c5da272c023e5`
- Retrieved: 2026-08-13T13:31:37.821Z
- Document slug: `federal-register-2025-12100`
- Related records: 6