Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Public Service Commission
Michigan Gas Safety Standards
Part 4 - SOUR GAS PIPELINES
Section R. 460.20426 - Leakage surveys

Rule 426. In addition to the requirements set forth in 49 C.F.R.§192.706, which is adopted by reference in R 460.20606, an operator of pipeline facilities used in the transportation of sour gas shall conduct leak surveys of those pipeline facilities using leak detection equipment at intervals of not more than 7 1/2 months, but not less than 2 times each calendar year, for all areas falling within the class 1 and class 2 location designations set forth in 49 C.F.R. §192.5, which is adopted by reference in R 460.20606.