# NUSTAR PIPELINE OPERATING PARTNERSHIP L.P. — Warning Letter

**Citation:** CPF 320045034W  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2004-11-08

CLOSED warning letter citing 195.412(a), 195.581(c)(2).

## Document text

Warning Letter involving NUSTAR PIPELINE OPERATING PARTNERSHIP L.P.. PHMSA's enforcement data identifies the cited regulations as 195,  195.412(a),  195.581(c)(2). The case was opened on 2004-11-08 and is reported as closed as of 2004-11-08. 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/320045034W>
- Source ID: `phmsa-enforcement`
- SHA-256: `d424740db24412a5e9884c47b618609f4d228be2fea5a3f6d6e480958a11d04a`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-23T08:14:19.908Z
- Document slug: `phmsa-enforcement-320045034w`

### Source metadata

```json
{
  "cpf": "320045034W",
  "operator": "NUSTAR PIPELINE OPERATING PARTNERSHIP L.P.",
  "region": "Central",
  "pipelineType": "INTERSTATE LIQUID ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "195.412(a)",
    "195.581(c)(2)"
  ],
  "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": "NUSTAR PIPELINE OPERATING PARTNERSHIP L.P."
}
```