# Design specifications for new pipeline.

**Citation:** WAC 480-75-350  
**Type / status:** regulation / current  
**Agency:** Washington Utilities and Transportation Commission  
**Effective:** 2008-06-30  
**Published:** Not stated

Pipeline companies must design new pipelines in accordance with ASME B31.4 "Pipeline Transportation Systems for Liquid Hydrocarbon and Other Liquids." Information about the ASME edition adopted and where to obtain it are set out in WAC 480-75-999, Adoption by reference.

## Document text

Pipeline companies must design new pipelines in accordance with ASME B31.4 "Pipeline Transportation Systems for Liquid Hydrocarbon and Other Liquids." Information about the ASME edition adopted and where to obtain it are set out in WAC 480-75-999, Adoption by reference.

## Provenance

- Official: Yes
- Source: <https://app.leg.wa.gov/WAC/default.aspx?cite=480-75-350>
- Source ID: `wa-wac`
- SHA-256: `c7277760e535e87c86619a61a26e9ca604ec808f0ffd3cbd00e4986db9057c35`
- Retrieved: 2026-08-11T02:02:35.370Z
- Exported: 2026-08-26T11:57:04.694Z
- Document slug: `wac-480-75-350`

### Source metadata

```json
{
  "jurisdiction": "US-WA",
  "chapter": "480-75",
  "section": "480-75-350",
  "sourceNote": "[Statutory Authority: RCW 80.01.040, 80.04.060, 81.88.040. WSR 08-12-045 (Docket PL-070974, General Order R-548), § 480-75-350, filed 5/30/08, effective 6/30/08. Statutory Authority: RCW 80.01.040 and 80.04.160. WSR 02-18-032 (Docket No. TO-000712, General Order No. R-500), § 480-75-350, filed 8/26/02, effective 9/26/02.]",
  "officialPdfUrl": "https://app.leg.wa.gov/WAC/default.aspx?cite=480-75-350&pdf=true",
  "filingHistoryUrl": "https://app.leg.wa.gov/wac/registerfiling.aspx?cite=480-75-350",
  "pipelineScope": "hazardous-liquid",
  "region": "WA"
}
```