Action
Notice of petition for waiver.
Summary
CNG Transmission Company (CNGT) has petitioned the Research and Special Programs Administration (RSPA) for a waiver from compliance with provisions of 49 CFR 192.611(a) requiring confirmation of the maximum allowable operating pressure (MAOP) by hydrostatic testing. Instead, CNGT requests they be permitted to requalify the MAOP by an alternative approach involving a combination of hydrostatic testing and inspection by an instrumented internal inspection device commonly known as a ``smart pig''. The need to confirm the MAOP results from a recent increase in the population density along certain segments of a 26-inch diameter gas transmission line in Ohio.