# Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines (PS-121)

**Citation:** PHMSA-2015-0071  
**Type / status:** rulemaking / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** Not stated

Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines (PS-121)

## Document text

Pressure Testing Older Hazardous Liquid and Carbon Dioxide Pipelines (PS-121)

## Provenance

- Official: Yes
- Source: <https://www.regulations.gov/docket/PHMSA-2015-0071>
- Source ID: `regulations-gov`
- SHA-256: `03417ff45e8fea40354f9892207d4a117a72d2bc976a7774fc221222fff911c3`
- Retrieved: 2026-08-20T02:11:23.714Z
- Exported: 2026-08-26T11:56:31.987Z
- Document slug: `regulations-gov-phmsa-2015-0071`

### Source metadata

```json
{
  "docketId": "PHMSA-2015-0071",
  "docketType": "Rulemaking",
  "agencyId": "PHMSA",
  "lastModifiedDate": "2015-09-17T16:29:57Z",
  "collectionQuery": "PHMSA pipeline",
  "metadataOnly": true,
  "jurisdiction": "US"
}
```