# NORTHWEST PIPELINE LLC — Notice of Amendment

**Citation:** CPF 520033001M  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2003-06-04

CLOSED notice of amendment citing 193.2013(a), 193.2505, 193.2513(c)(4), 193.2515(b), 193.2515(c), 193.2819(d).

## Document text

Notice of Amendment involving NORTHWEST PIPELINE LLC. PHMSA's enforcement data identifies the cited regulations as 193,  193.2013(a),  193.2505,  193.2513(c)(4),  193.2515(b),  193.2515(c),  193.2819(d). The case was opened on 2003-06-04 and is reported as closed as of 2003-09-22. Open the official case record for notices, responses, orders, and the latest status.

PHMSA lists no public case documents for this record.

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/520033001M>
- Source ID: `phmsa-enforcement`
- SHA-256: `28f099d5d3b9a7790ca86b39fbdf053eeac0708512d28860422729b453754f66`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-23T18:50:00.760Z
- Document slug: `phmsa-enforcement-520033001m`

### Source metadata

```json
{
  "cpf": "520033001M",
  "operator": "NORTHWEST PIPELINE LLC",
  "region": "Western",
  "pipelineType": "INTERSTATE LNG ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "193.2013(a)",
    "193.2505",
    "193.2513(c)(4)",
    "193.2515(b)",
    "193.2515(c)",
    "193.2819(d)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 0,
  "attachments": [],
  "extractedAgencyDocumentCount": 0,
  "attachmentPolicy": "Official attachment links are retained. Agency-issued documents may also include a verified local PDF and page-level text representation.",
  "jurisdiction": "US",
  "operatorName": "NORTHWEST PIPELINE LLC"
}
```