# Applicability.

**Citation:** 49 CFR 180.201  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

This subpart prescribes requirements, in addition to those contained in parts 107, 171, 172, 173, and 178 of this chapter, for the continuing qualification, maintenance, or periodic requalification of DOT specification and exemption cylinders and UN pressure receptacles.

[71 FR 33894, June 12, 2006

## Document text

This subpart prescribes requirements, in addition to those contained in parts 107, 171, 172, 173, and 178 of this chapter, for the continuing qualification, maintenance, or periodic requalification of DOT specification and exemption cylinders and UN pressure receptacles.

[71 FR 33894, June 12, 2006]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-180.201>
- Source ID: `ecfr`
- SHA-256: `155625e1ae773d66516820e269a2958fd309ee21e42766a2c0d66c6073bb0abb`
- Retrieved: 2026-08-20T05:46:24.978Z
- Exported: 2026-08-23T09:00:13.329Z
- Document slug: `49-cfr-180-201`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "180",
  "section": "180.201",
  "subpart": "Subpart C—Qualification, Maintenance and Use of Cylinders",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```