# Wyoming Public Service Commission — Pipeline Safety Interpretation

**Citation:** PI-74-0116  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1974-05-22

PI-74-0116 response to Wyoming Public Service Commission concerning 192.451.

## Document text

<<<PAGE 1>>>

PI-74-0116
May 22, 1974
Mr. Jon F. Jacquot
Wyoming Public Service Commission
Supreme Court Building
Cheyenne, WY 82002
Dear Mr. Jacquot:
This responds to your letter of May 14, 1974, asking whether Subpart I of 49 CFR Part 192
applies to gathering systems in nonrural areas.
Subpart I applies to all pipelines subject to Part 192, including gathering lines in nonrural areas
as described in Section 192.1. Where certain requirements in Subpart I specifically relate to
transmission lines, these requirements apply with equal force to gathering lines as provided in
section 192.9.
We trust this satisfactorily answers your inquiry.
Sincerely,
/signed/
Joseph C. Caldwell
Director
Office of Pipeline Safety
192.1 1

<<<PAGE 2>>>

Public Service Commission
Supreme Court Building
Cheyenne, Wyoming 82002
May 14, 1974
Mr. Joseph C. Caldwell
Office of Pipeline Safety
U. S. Department of Transportation
Washington, D. C. 20590
RE: Corrosion control on gathering
systems in nonrural areas.
Dear Mr. Caldwell:
Having reviewed Subpart I of the Minimum Federal Safety Standards a question has been
raised as to whether the requirements for Subpart I are applicable to gathering systems in
nonrural areas. No mention is made in Subpart I of gathering systems and only transmission and
distribution systems are mentioned.
Your prompt reply to this inquiry is appreciated.
Very truly yours,
Jon F. Jacquot
Pipeline Safety Engineer
192.1 2

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1974/g74-05-22_Jacquot_192.451-nlmx.pdf>
- Source ID: `phmsa`
- SHA-256: `989ec7c8c1d1e8299f32ccd40a61db11efb4eef1e6b9a9876991da239e16a737`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T00:22:11.887Z
- Document slug: `phmsa-interpretation-pi-74-0116`

### Source metadata

```json
{
  "materialSubtype": "interpretation",
  "interpretationArea": "pipeline_safety",
  "representation": "full_text_from_official_pdf",
  "companies": [
    "Wyoming Public Service Commission"
  ],
  "individuals": [
    "Mr. Jon F. Jacquot"
  ],
  "refIds": [
    "PI-74-0116"
  ],
  "catalogDates": [
    "1974-05-22"
  ],
  "catalogParts": [
    192
  ],
  "catalogRowCount": 1,
  "sourceRecordUrls": [
    "https://www.phmsa.dot.gov/node/43876"
  ],
  "linkedAttachmentUrls": [],
  "unavailableResponseUrls": [],
  "duplicateRepresentationUrls": [],
  "citedSections": [
    "192.451",
    "192.1",
    "192.9"
  ],
  "catalogPageUrls": [
    "https://www.phmsa.dot.gov/regulations/title49/section/192451"
  ],
  "pdfUrls": [
    "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1974/g74-05-22_Jacquot_192.451-nlmx.pdf"
  ],
  "representations": [
    {
      "viewUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1974/g74-05-22_Jacquot_192.451-nlmx.pdf",
      "detailUrl": null,
      "detailHtmlPath": null,
      "pdfUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1974/g74-05-22_Jacquot_192.451-nlmx.pdf",
      "pdfArtifactPath": "data/sources/phmsa-interpretations/pi-74-0116.pdf",
      "pdfArtifactSha256": "7eb445928a93e87e827b0224472f522969ef49809ac8037d76305629928be177",
      "extractedTextPath": "data/sources/phmsa-interpretations/pi-74-0116.v2.txt",
      "extractedTextSha256": "d8b330178ae5e7eb95c84eb3428d528405d6bfb6f550a7b31760e9644a6a100c",
      "pageCount": 2,
      "extractionVersion": 2
    }
  ],
  "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.",
  "jurisdiction": "US"
}
```