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Interpretation Response #PI-75-051

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

Interpretation Response Details

Response Publish Date: 10-21-1975
Company Name: Natural Gas Pipeline Company of America    Individual Name: R. C. Brady
Location state: IL    Country: US

View the Interpretation Document

Response text:

October 21, 1975

Mr. R. C. Brady
Supervisor, Data Systems & Procedures
Natural Gas Pipeline Company of America
122 South Michigan Avenue
Chicago, Illinois 60603

Dear Mr. Brady:

This is in reply to your recent letter which was received by this office on September 5, 1975, regarding microfilming of various records of corrosion control.

Section 192.491 of the Federal gas pipeline safety standards requires that for as long as the pipeline remains in service, each operator shall maintain records commencing July 31, 1972, in sufficient detail to demonstrate the adequacy of corrosion control measures or that a corrosive condition does not exist. This section does not prohibit the use of microfilming to preserve the records nor does it require that the original documents be retained after being put on film. The regulations do not require the certification of the microfilm process.

Thank you for your interest in pipeline safety.


Cesar DeLeon
Acting Director
Office of Pipeline
Safety Operations

Regulation Sections

Section Subject
§ 192.491 Corrosion control records