# Regulus search export

- Query: `91 FR 49305`
- Source type: All
- Part: All
- Source: All
- Status: All
- Jurisdiction: All
- Collection: All
- Incident class: All
- Sort: relevance
- Date from: Any
- Date to: Any
- As of: Current corpus
- Results: 3
- Exported: 2026-08-24T02:25:22.840Z

## 1. Hazardous Materials: Remove Redundant List of U.S. EPA CERCLA Hazardous Substances

**Citation:** 91 FR 49305  
**Type / status:** rulemaking / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2026-12-02 / 2026-08-04

To improve efficiency and eliminate redundancy, this final rule streamlines the Hazardous Materials Regulations by modifying how hazardous substances are listed. Instead of maintaining a duplicative list, the regulations will now rely on the authoritative, comprehensive list already maintained by the U.S. Environmental Protection Agency.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2026/08/04/2026-15809/hazardous-materials-remove-redundant-list-of-us-epa-cercla-hazardous-substances>
- Source ID: `federal-register`
- SHA-256: `847ca58fc5eac753f57a4da019d85fffdd98197184dbf1184a98047604a4c2c0`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-2026-15809`
- Related records: 3

## 2. Requirements for specific materials and packagings transported under the ICAO Technical Instructions, IMDG Code, Transport Canada TDG Regulations, or the IAEA Regulations.

**Citation:** 49 CFR 171.23  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2026-08-18 / Not stated

Link to an amendment published at 91 FR 49305, Aug. 4, 2026.

### Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-171.23>
- Source ID: `ecfr`
- SHA-256: `352f8f0ead5a8aa5d9b6ede3975922c64503c256ba58fe9c06545d1b681c6363`
- Retrieved: 2026-08-20T05:45:53.607Z
- Document slug: `49-cfr-171-23`
- Related records: 196

## 3. Definitions and abbreviations.

**Citation:** 49 CFR 171.8  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2026-08-18 / Not stated

Link to an amendment published at 91 FR 49305, Aug. 4, 2026. Link to an amendment published at 91 FR 49310, Aug. 4, 2026. Link to an amendment published at 91 FR 51102, Aug. 7, 2026.

### Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-171.8>
- Source ID: `ecfr`
- SHA-256: `91219de62bb956e102edcb624737015c146e8d48aa4216452314a0e4eedc8a2d`
- Retrieved: 2026-08-20T05:45:53.607Z
- Document slug: `49-cfr-171-8`
- Related records: 1180