operation conducted by the operator. (B) Exclusion In promulgating regulations under subparagraph (A), the Secretary shall ensure that those regulations do not apply to a district regulating station that has a monitoring system and the capability for remote or automatic shutoff. (4) District regulator stations (A) In general Not later than 1 year after the date of enactment of this subsection, the Secretary shall promulgate regulations to require that each operator of a distribution pipeline assesses and upgrades, as appropriate, each district regulator station of the operator to ensure that— (i) there is no possibility for a common mode of failure in the regulator technology of the station that could lead to an operating pressure that is greater than the maximum allowable operating pressure (as described in section 192.619 of title 49, Code of Federal Regulations (or successor regulations))