# Memo: Internal — Pipeline Safety Interpretation

- **operation:** document
- **citation:** PI-81-003
- **title:** Memo: Internal — Pipeline Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1981-02-25
- **effective on:** Not available
- **summary:** PI-81-003 response to Memo: Internal concerning 192.311.
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- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1981/PI81003.pdf
**body:**

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ACTION: Interpretation - Section 192.311
Robert L. Paulin
Associate Director for Operations & Enforcement, DMT-10
Melvin A. Judah
Acting Associate Director for
Pipeline Safety Regulation, DMT-30
Section 192.311, a general construction requirement for transmission lines and mains. limits
plastic pipe repair to the use of a patching saddle or removal. Also, Paragraph 192.13(b) requires
that when a segment of pipeline is replaced, relocated, or otherwise changed, then that
replacement, relocation, or change must be made in accordance with this part. With these
requirements in mind, would the existing Part 192 permit the addition of a band clamp
(compression fitting) on an operating pipeline to permanently repair damage or a leak (1) on a
plastic transmission line or main? (2) on a plastic service line?
DB
C:\WP51\INTERPRT\192\311\81-02-25
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