The commission, upon its preliminary finding that rates set by the regulatory agency of the neighboring state are prima facie discriminatory, preferential or otherwise unlawful, and that all remedies with the neighboring state's utility and commission have been exhausted, may initiate proceedings to review the decision of the regulatory agency of the neighboring state. Any subsequent order of the commission altering the decision of the regulatory agency of the neighboring state will be of prospective effect only.
Idaho Code § 61-505