# -1 Tanks built under these specifications must meet the requirements of §§ 179.220 and 179.221.

**Citation:** 49 CFR 179.220-1  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated



## Document text



## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-179.220-1>
- Source ID: `ecfr`
- SHA-256: `a496eef9333ef4f50049370687ab1a6bbf12dcc9480c29043d12f7a212006a7d`
- Retrieved: 2026-08-20T05:46:20.606Z
- Exported: 2026-08-25T11:48:18.349Z
- Document slug: `49-cfr-179-220-1`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "179",
  "section": "179.220-1",
  "subpart": "Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```