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Interpretation Response #PI-70-009 ([State Of Indiana Public Service Comm.] [D. J. Hendrickson])

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

Interpretation Response Details

Response Publish Date:

Company Name: State Of Indiana Public Service Comm.

Individual Name: D. J. Hendrickson

Location State: IN Country: US

View the Interpretation Document

Response text:

Mr. D. J. Hendrickson, Director
Utility Safety Section
State Of Indiana Public Service Comm.
901 State Office Building
Indianapolis, Indiana 46204

Dear Mr. Hendrickson:

Thank you for your letter of October 30, 1970, requesting an interpretation of 49 CFR, Section

You are correct that one method of compliance is to locate a regulator and pressure limiting
device in separate vaults if below grade or separated by a reasonable distance if above grade.

However, there may be other means of accomplishing this result which may be appropriate or
desirable in a particular situation.

The problem of a long control line on a monitor regulator is recognized but there are steps that
can be taken to provide a protection for the control line; such as, locating the control line in the
same ditch and slightly below the main line or using heavy wall pipe for the control line.

If we can be of further assistance, please do not hesitate to ask.



Joseph C. Caldwell
Director, Acting
Office of Pipeline Safety

Regulation Sections

Section Subject
192.197 Control of the pressure of gas delivered from high-pressure distribution systems