Interpretation Response #PI-75-051
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
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.
Office of Pipeline
|§ 192.491||Corrosion control records|