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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Interpretation Response #PI-83-0105

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name:

Individual Name:

Location State: PA Country: US

View the Interpretation Document

Response text:

June 23, 1983

Mr. Edward L. Schmitt
Design Engineer
Kerotest Manufacturing Corporation
2525 Liberty Avenue
Pittsburgh, PA 15222

Dear Mr. Schmitt:
Your letter of June 9, 1983, requests an interpretation of 49 CFR 192.281(a) relative to the
statement, "Plastic pipe may not be joined by a threaded joint." A copy of a previous
interpretation that addresses your question is enclosed.
Original signed by: Richard L Beam Associate Director for
Pipeline Safety Regulation
Materials Transportation Bureau

September 25, 1979

Mr. P. P. Petro
Director Technical Services
3240 North Mannheim Road
Franklin Park, Mob 60131

Dear Mr. Petro:

This responds to your letter of July 6, 1979, asking if the rule in 49 CFR 192.281(a), stating that
"plastic pipe may not be Joined by a threaded joint or miter Joint," applies to the manufacture of
fittings in a plant.

As indicated by  Section 192.271(b), neither section 192.281 nor any of the other provisions of
Subpart F concerning the joining of materials apply to Joining that is performed during the
manufacture of pipe or components (including fittings). The regulations do apply to any Joining of
pipe or components that occurs for gas pipeline transportation purposes outside the manufacturing
factory. Such joining is normally performed at a pipeline construction site or in fabrication

Cat& De Leon 
Associate Director for Pipeline Safety Regulation
Materials Transportation Bureau

Regulation Sections

Section Subject
192.281 Plastic pipe