# -9 Top fittings protection.

**Citation:** 49 CFR 179.202-9  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

The tank car tank must be equipped with top fittings protection conforming to AAR Specifications for Tank Cars, appendix E paragraph 10.2.1 (IBR, see § 171.7 of this subchapter).

[80 FR 26749, May 8, 2015]

## Document text

The tank car tank must be equipped with top fittings protection conforming to AAR Specifications for Tank Cars, appendix E paragraph 10.2.1 (IBR, see § 171.7 of this subchapter).

[80 FR 26749, May 8, 2015]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-179.202-9>
- Source ID: `ecfr`
- SHA-256: `20eed1d174a16f0038620aad40b0ce97dd5d8f2fe9bc4a4d03aa7e59c6dcdb25`
- Retrieved: 2026-08-20T05:46:20.606Z
- Exported: 2026-08-25T20:40:24.975Z
- Document slug: `49-cfr-179-202-9`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "179",
  "section": "179.202-9",
  "subpart": "Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```