# Wyoming Public Service Commission — Pipeline Safety Interpretation

**Citation:** PI-75-022  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1975-05-21

PI-75-022 response to Wyoming Public Service Commission concerning 192.229.

## Document text

<<<PAGE 1>>>

May 21, 1975
Mr. Jon F. Jacquot
Wyoming Public Service Commission
Supreme Court Building
Cheyenne, WY 82002
Dear Mr. Jacquot:
This is in response to your letter of February 18, 1975, concerning the requalification of welders
who have been qualified under Section 3.2 or API Standard 1104.
You asked if a welder who has a multiple qualification under Section 3.2 of API Standard 1104
can requalify for the full scope of his qualification by having a single weld tested (radiograph of a
butt weld, any size) as eluded to in Section 192.229(c) or must he have both a butt and branch
weld destructively tested? This assumes that the welder is requalifying within six months of his
initial qualification or a previous requalification test.
Answer: For welders qualified to make both butt and fillet welds by the multiple qualifications
test of API Standard 1104, either type of weld can be destructively tested to comply with Section
192.229(c) since only one weld is required to be tested. However, a butt weld does not have to
be destructively tested to comply with Section 192.229(c) if it is nondestructively tested and
found acceptable under Section 6 of API Standard 1104.
I trust this satisfactorily responds to your question.
Sincerely,
\signed\
Joseph C. Caldwell
Director
Office of Pipeline Safety
dal\192\229\75-05-21
1

<<<PAGE 2>>>

PUBLIC SERVICE COMMISSION
SUPREME COURT BUILDING
CHEYENNE, WY 82002
February 18, 1975
Mr. Joseph C. Caldwell, Director
Office of Pipeline Safety
TES-30
U.S. Department of Transportation
Washington, D.C. 20590
RE: Requalification of Welders who have qualified under Section 3.2, API Standard
1104 _
Dear Mr. Caldwell:
Can a man who is multiply qualified under Section 3.2, API Standard 1104 requalify for
the full scope of his qualification by having a single weld tested (Radiograph of a butt weld, any
size) as eluded to in Section 192.229(c) or must he have both a butt and a branch weld
destructively tested? This of course, is assuming that a welder is requalifying within six (6)
months of his initial qualification or a previous requalification test.
Your assistance in this matter with clarification of the above mentioned codes is
appreciated.
Very truly yours,
\signed\
Jon F. Jacquot
Pipeline Safety Engineer
dal\192\229\75-05-21
2

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75022.pdf>
- Source ID: `phmsa`
- SHA-256: `42a6ee4aaf4e73fc78988c0549f9394d3d4a0eb4ccacddc85b5e6e0d55edc3ae`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T21:33:58.199Z
- Document slug: `phmsa-interpretation-pi-75-022`

### Source metadata

```json
{
  "materialSubtype": "interpretation",
  "interpretationArea": "pipeline_safety",
  "representation": "full_text_from_official_pdf",
  "companies": [
    "Wyoming Public Service Commission"
  ],
  "individuals": [
    "Jon F. Jacquot"
  ],
  "refIds": [
    "PI-75-022"
  ],
  "catalogDates": [
    "1975-05-21"
  ],
  "catalogParts": [
    192
  ],
  "catalogRowCount": 1,
  "sourceRecordUrls": [
    "https://www.phmsa.dot.gov/node/63031"
  ],
  "linkedAttachmentUrls": [],
  "unavailableResponseUrls": [],
  "duplicateRepresentationUrls": [],
  "citedSections": [
    "192.229",
    "192.229(c)"
  ],
  "catalogPageUrls": [
    "https://www.phmsa.dot.gov/regulations/title49/section/192229"
  ],
  "pdfUrls": [
    "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75022.pdf"
  ],
  "representations": [
    {
      "viewUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75022.pdf",
      "detailUrl": null,
      "detailHtmlPath": null,
      "pdfUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75022.pdf",
      "pdfArtifactPath": "data/sources/phmsa-interpretations/pi-75-022.pdf",
      "pdfArtifactSha256": "e9c2d8e20b4df7e40034d5a9cbafd7155511c8f6baf5d89b681a812e805785e2",
      "extractedTextPath": "data/sources/phmsa-interpretations/pi-75-022.v2.txt",
      "extractedTextSha256": "2cc8f812da0c058d5947f8656a82dda5b6d915508d2c8bfd5bf0fa3f8fbaa034",
      "pageCount": 2,
      "extractionVersion": 2
    }
  ],
  "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.",
  "jurisdiction": "US"
}
```