Mich. Admin. Code R. 460.20329
Current through Vol. 24-21, December 1, 2024
Rule 329. In addition to the requirements contained in 49 CFR 192.747, which is adopted by reference in R 460.20606, an operator shall partially operate a valve that may be necessary for the safe operation of a distribution system, other than plastic valves, at intervals of not more than 15 months, but at least each calendar year.
Mich. Admin. Code R. 460.20329