# Regulus search export

- Query: `36 FR 21340`
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- Exported: 2026-08-24T05:23:29.840Z

## 1. -4 Insulation.

**Citation:** 49 CFR 179.220-4  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2026-08-18 / Not stated

\[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971\]

### Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-179.220-4>
- Source ID: `ecfr`
- SHA-256: `600fc90ba79f89bfc8c310d90d5a705ced740fdad9b0dd3b3d76a390b97b390f`
- Retrieved: 2026-08-20T05:46:20.606Z
- Document slug: `49-cfr-179-220-4`
- Related records: 0