Idaho Code § 62-622A
A telephone corporation may file a petition with the commission alleging that another telephone corporation, not subject to regulation pursuant to title 61, Idaho Code, is offering basic local exchange service to customers in a local exchange calling area at a price below its average variable cost of providing such service in the local exchange calling area. The commission shall, if after hearing it finds by a preponderance of the evidence that the allegations contained in the petition are true, establish a minimum price for basic local exchange service of the telephone corporation in the local exchange calling area, which minimum price shall reflect the telephone corporation's average variable cost of providing such service.
Idaho Code § 62-622A