20.50.12.06

.06 Service Interruption Standard.

A. During each calendar year, a utility shall restore service within 8 hours, measured from when the utility knew or should have known of the outage, to at least 92 percent of its customers experiencing sustained interruptions during normal conditions.

B. During each calendar year, a utility shall restore service within 50 hours, measured from when the utility knew or should have known of the outage, to at least 95 percent of its customers experiencing sustained interruptions during major outage events where the total number of sustained interruptions is less than or equal to 400,000 or 40 percent of the utility's total number of customers, whichever is less.

C. If more than one major outage event subject to the standard set forth in §B of this regulation occurs during a calendar year, the restoration percentage shall be calculated by giving equal weight to all sustained interruptions occurring during the major outage events.

D. During each calendar year, a utility shall restore service as quickly and safely as permitted to its customers experiencing sustained interruptions during each major outage event in which the total number of sustained interruptions is greater than 400,000 or 40 percent of the utility's total number of customers, whichever is less.

E. If a utility fails to satisfy the standard in §A, B or D of this regulation during the previous calendar year, it shall provide a corrective action plan, preferably in its annual performance report but by no later than April 1.

F. In the calendar year these regulations become effective, §§A and B of this regulation shall apply from the effective date of the regulations until the end of the calendar year.