(1) Upon promulgation of these rules, utilities supplying electricity in Montana shall submit a curtailment plan modeled on the procedures outlined in these rules within 180 days.   Each utility's curtailment plan shall include the following information:

(a) description of the utility's power resources and obligations including peak and average, firm and interruptible loads;

(b) description of the measures the utility will take to curtail its own uses of electricity under stage 1 of a supply alert as specified in ARM 14.8.213 and the estimated energy savings from these measures;

(c) description of the voluntary conservation measures the utility will recommend to its customers under stages 1 and 2 of a supply alert as specified in ARM 14.8.213 and ARM 14.8.214;

(d) identification of priority load customers, description of the utility's ability to isolate and maintain service to these customers in the event of stage 3 of an energy emergency as described in ARM 14.8.221, and the notification procedure the utility will follow prior to any unavoidable curtailment;

(e) description of the monitoring procedures the utility will follow and the methodology that will be used to estimate energy savings in each stage of a supply alert and emergency;

(f) identification of the utility's major use customers and their average consumption;

(g) identification of the utility's supply obligations by customer class and approximate number of customers in each class; and

(h) the proposed membership for the utility's adjustment committee as specified in ARM 14.8.229(2) (a) .

(2) The curtailment plan described in subsection (1) may contain additional provisions to reflect the particular circumstances of the utility.

(3) Each utility's curtailment plan shall be reviewed by the governor or his designee and the energy policy committee established under section 90-4-303, MCA.

(4) Following acceptance of the curtailment plan, the utility shall keep the plan in reserve for implementation upon declaration of an energy supply alert or emergency.

(5) Utilities may be required to update their curtailment plans periodically to reflect current or changed conditions.