# Construction specifications.

- **operation:** document
- **citation:** WAC 480-75-450
- **title:** Construction specifications.
- **source type:** regulation
- **agency:** Washington Utilities and Transportation Commission
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2008-06-30
- **summary:** Each pipeline company must assure that any new pipeline construction conforms to the requirements of ASME B31.4. The longitudinal seams of connecting pipe joints must be offset by at least two inches. In addition, the longitudinal seams must be located on the upper half of the pipe when laid in an o
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- **source url:** https://app.leg.wa.gov/WAC/default.aspx?cite=480-75-450
**body:**

Each pipeline company must assure that any new pipeline construction conforms to the requirements of ASME B31.4. The longitudinal seams of connecting pipe joints must be offset by at least two inches. In addition, the longitudinal seams must be located on the upper half of the pipe when laid in an open trench. Information about the ASME edition adopted and where to obtain it are set out in WAC 480-75-999, Adoption by reference.
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- **body characters:** 431