# Regulus search export

- Query: `90 FR 28548`
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- Exported: 2026-08-24T00:17:06.134Z

## 1. Hazardous Materials: Adoption of Department of Transportation Special Permit 21287

**Citation:** 90 FR 28548  
**Type / status:** rulemaking / proposed  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** Not stated / 2025-07-01

This NPRM proposes to adopt a special permit into the hazardous materials regulations to streamline the transportation of small refrigerating machines that contain limited quantities of certain flammable gases, including common household appliances such as refrigerators, window-mounted air-conditioning units, and dehumidifiers.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2025/07/01/2025-12121/hazardous-materials-adoption-of-department-of-transportation-special-permit-21287>
- Source ID: `federal-register`
- SHA-256: `3740e513da68e3cbd474fac34cee399f31b6afd8d225df239b1a96495e453712`
- Retrieved: 2026-08-13T13:31:37.821Z
- Document slug: `federal-register-2025-12121`
- Related records: 4