USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Interpretation Response #PI-71-008 ([United Natural Gas Company] [Richard M. DiValerio])

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

Interpretation Response Details

Response Publish Date:

Company Name: United Natural Gas Company

Individual Name: Richard M. DiValerio

Location State: PA Country: US

View the Interpretation Document

Response text:

January 20, 1971

Mr. Richard M. DiValerio
United Natural Gas Company
308 Seneca Street
Oil City, Pennsylvania 16301

Dear Mr. DiValerio:

This is in reply to your letter requesting an interpretation of the relationship of 49 CFR, Sections
192.241(b) and 192.719(a)(2).

Section 192.241(b) established limited exceptions to the requirement for non-destructive testing
of all welds on pipe to be operated at 20 percent or more of SMYS, while §192.719(a)(2) deals
only with repair welds.

As you have mentioned repairs usually consist of replacing a short section of pipe. The tie-in
welds on these short sections of pipe are generally more difficult to make and more often
performed under adverse conditions. Experience has demonstrated there is a greater need to
require weld quality in these situations.

Therefore, if these welds are not strength tested, the requirements of §192.719(a)(2) must
override the exceptions in §192.241(b).

Thank you for your interest in pipeline safety.

Sincerely,

/signed/

Joseph C. Caldwell
Director, Acting
Office of Pipeline Safety

Regulation Sections

Section Subject
192.241 Inspection and test of welds
192.719 Transmission lines: Testing of repairs