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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-75-054 ([ADB 75-11])

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

Interpretation Response Details

Response Publish Date:

Company Name: ADB 75-11

Individual Name:

Country: US

View the Interpretation Document

Response text:

OPSO Advisory Bulletin No. 75-11 November, 1975

Relates to 49 CFR, §192.503:

QUESTION: Does Section 192.503(d) refer to pressure testing only of welds?

OPSO INTERPRETATION: ....."Section 192.503(d) provides that the leak and strength test
requirements for pipelines under Subpart J do not apply to welds used to tie-in a segment of
pipeline being tested."

Relates to 49CFR, §192.619 and §192.719:

QUESTION: Does a pressure test made on replacement pipe before it is installed, as permitted
by Section 192.719(a)(2), satisfy the requirement of Section 1192.619(a)(2)(ii)
that in establishing a maximum allowable operating pressure for certain pipe, a
pressure test be made "after construction?"

OPSO INTERPRETATION: ..... "Because the requirements of Sections 192.619(a)(2)(ii) and
192.719(a)(2) apply in conjunction, a pressure test permitted by Section 192.719(a)(2) to be
made before installation must necessarily qualify as the test required by Section 192.619(a)(2)(ii).
At the same, Section 192.719(a)(2) provides that any field girth butt weld which is not strength
tested in the pre-installation testing process must be nondestructively tested after installation in
accordance with Section 192.243."

Relates to 49 CFR, §192.613 and §192.703:

QUESTION: Regarding construction of a public road over an existing gas pipeline, what criteria
should be used in determining whether the pipeline should remain in place or be

OPSO INTERPRETATION: ..... "Under the circumstances of a pending road construction, the
Federal gas pipeline safety standards in 49 CFR 192.613 and 192.703(b) require that the pipeline
be evaluated for safety and appropriate remedial or protective measures taken, if necessary, in
accord with those sections. In determining what measures may be necessary, you should consider
the types and magnitudes of all anticipated external forces which may be applied to the pipeline
during and after the road construction. Various causes of external forces, which you should
consider include: unstable soils, floods, traffic, movement by heavy construction or maintenance
equipment, and direct damage by construction equipment.

"If it is decided that a portion of the pipeline should be replaced, relocated, or otherwise changed
to protect it against likely external forces, that replacement, relocation, or change must comply
with the requirements in 49 CFR Part 192 applicable to design, installation and testing of

Cesar DeLeon

Acting Director
Office of Pipeline
Safety Operations

Regulation Sections

Section Subject
192.503 General requirements
192.613 Continuing surveillance
192.619 Maximum allowable operating pressure: Steel or plastic pipelines
192.703 General
192.719 Transmission lines: Testing of repairs