RegulationsHAR 6-77-196RegulationcurrentHAR 6-77-196HAR 6-77-196 Valve maintenance: distribution systemsCurrent as of 1994-09-03 Government sourceHawaii Public Utilities CommissionOfficial agency materialView source 2 passagesbe necessary for the safe operation of a distribution system, must be checked and serviced at intervals not exceeding fifteen months, but at least once each calendar year. [Eff ] (Auth: HRS '269-6) (Imp: 49#C.F.R. '192.747, October 1, 1990)#