# WTS, Inc. — Hazardous Materials Safety Interpretation

**Citation:** 14-0221  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2015-01-08

14-0221 response to WTS, Inc. concerning 172.301, 172.304.

## Document text

14-0221. Organizations: WTS, Inc.. Recipients: Mr. Brian Burns. Cataloged sections: 172.301, 172.304. The catalog exposes only a linked correspondent attachment; no agency response body is mirrored or indexed.

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/node/66796>
- Source ID: `phmsa`
- SHA-256: `afa7d3e5485b9412c563cc2983fdc27933ddd56386435527782a1355f46afb81`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T17:25:12.245Z
- Document slug: `phmsa-interpretation-14-0221`

### Source metadata

```json
{
  "materialSubtype": "interpretation",
  "interpretationArea": "hazardous_materials",
  "representation": "catalog_metadata_with_link_only_correspondent_attachment",
  "companies": [
    "WTS, Inc."
  ],
  "individuals": [
    "Mr. Brian Burns"
  ],
  "refIds": [
    "14-0221"
  ],
  "catalogDates": [
    "2015-01-08"
  ],
  "catalogParts": [
    172
  ],
  "catalogRowCount": 2,
  "sourceRecordUrls": [
    "https://www.phmsa.dot.gov/node/66796"
  ],
  "linkedAttachmentUrls": [
    "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2015/attachments_013723_original_140221.pdf"
  ],
  "unavailableResponseUrls": [],
  "duplicateRepresentationUrls": [],
  "citedSections": [
    "172.301",
    "172.304"
  ],
  "catalogPageUrls": [
    "https://www.phmsa.dot.gov/regulations/title49/section/172301",
    "https://www.phmsa.dot.gov/regulations/title49/section/172304"
  ],
  "pdfUrls": [],
  "representations": [],
  "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.",
  "jurisdiction": "US"
}
```