# Southwest Gas Corporation — Pipeline Safety Interpretation

**Citation:** PI-93-025  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1993-05-26

PI-93-025 response to Southwest Gas Corporation concerning 192.605.

## Document text

<<<PAGE 1>>>

May 26, 1993
Mr. Marti Marek
Manager, Compliance and Operations Audit Staff
Southwest Gas Corporation
P.O. Box 98510
5241 Spring Mountain Road
Las Vegas, NV 89193-8510
Dear Marti Marek:
I am sorry to have taken so long to respond to your letter of November 23, 1992. You asked
whether meter turn-on operations must be included within an operation and maintenance plan
under 49 CFR 192.605.
We received a letter on this subject from Dan Weaklend of the Arizona Corporation Commission
(enclosed). We are of the same opinion as Mr. Weaklend that the plan must cover turn-on
operations. However, it is §192.605(a), not §192.605(b), that requires inclusion of the operations
within the plan.
Sincerely,
Cesar De Leon
Director, Regulatory Programs
Office of Pipeline Safety
Enclosure
dal\192.605\93-05-26

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93025.pdf>
- Source ID: `phmsa`
- SHA-256: `e1c4c1ca8e14c27a4b2746833f96945839cb4551d64d6d59e1c9e4b463a7f050`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-25T00:55:54.821Z
- Document slug: `phmsa-interpretation-pi-93-025`

### Source metadata

```json
{
  "materialSubtype": "interpretation",
  "interpretationArea": "pipeline_safety",
  "representation": "full_text_from_official_pdf",
  "companies": [
    "Southwest Gas Corporation"
  ],
  "individuals": [
    "Marti Marek"
  ],
  "refIds": [
    "PI-93-025"
  ],
  "catalogDates": [
    "1993-05-26"
  ],
  "catalogParts": [
    192
  ],
  "catalogRowCount": 1,
  "sourceRecordUrls": [
    "https://www.phmsa.dot.gov/node/49421"
  ],
  "linkedAttachmentUrls": [],
  "unavailableResponseUrls": [],
  "duplicateRepresentationUrls": [],
  "citedSections": [
    "192.605"
  ],
  "catalogPageUrls": [
    "https://www.phmsa.dot.gov/regulations/title49/section/192605"
  ],
  "pdfUrls": [
    "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93025.pdf"
  ],
  "representations": [
    {
      "viewUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93025.pdf",
      "detailUrl": null,
      "detailHtmlPath": null,
      "pdfUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93025.pdf",
      "pdfArtifactPath": "data/sources/phmsa-interpretations/pi-93-025.pdf",
      "pdfArtifactSha256": "ed0d4fcc5924989b62471ed8a0d88c7849070e35ba0d92d97448f2041ccba9f1",
      "extractedTextPath": "data/sources/phmsa-interpretations/pi-93-025.v2.txt",
      "extractedTextSha256": "d0ae40e772c8a3ae71d75f31b737cbb5c046a324ae07844e3f34c75474d2a5f0",
      "pageCount": 1,
      "extractionVersion": 2
    }
  ],
  "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.",
  "jurisdiction": "US"
}
```