# Regulus search export

- Query: `69 FR 78375`
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- Exported: 2026-08-27T16:56:46.433Z

## 1. Hazardous Materials: Safety Requirements for External Product Piping on Cargo Tanks Transporting Flammable Liquids

**Citation:** 69 FR 78375  
**Type / status:** rulemaking / proposed  
**Agency:** Research and Special Programs Administration  
**Effective / published:** Not stated / 2004-12-30

RSPA is proposing to amend the Hazardous Materials Regulations to prohibit flammable liquids from being transported in unprotected product piping on existing and newly manufactured DOT specification cargo tank motor vehicles. If adopted as proposed, this action will reduce fatalities and injuries that result from accidents involving unprotected product piping. This proposal was developed jointly with the Federal Motor Carrier Safety Administration.

### Provenance

- Official: Yes
- Source: <https://www.federalregister.gov/documents/2004/12/30/04-28561/hazardous-materials-safety-requirements-for-external-product-piping-on-cargo-tanks-transporting>
- Source ID: `federal-register`
- SHA-256: `d5f0e6bc8579794f8fd2ed7a1522f11c538110fbf905be0597d7c14789f2582e`
- Retrieved: 2026-08-20T06:04:51.294Z
- Document slug: `federal-register-04-28561`
- Related records: 5