# General design and construction requirements applicable to Specification DOT 406 (§ 178.346), DOT 407 (§ 178.347), and DOT 412 (§ 178.348) cargo tank motor vehicles.

**Citation:** 49 CFR 178.345  
**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-178.345>
- Source ID: `ecfr`
- SHA-256: `efc47f78e93d2c6b8a4d76145d9cb0c83267eaf46dc8988db29bade30f10323b`
- Retrieved: 2026-08-20T05:46:20.151Z
- Exported: 2026-08-22T03:22:56.458Z
- Document slug: `49-cfr-178-345`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "178",
  "section": "178.345",
  "subpart": "Subpart J—Specifications for Containers for Motor Vehicle Transportation",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```