Idaho Code § 61-313A: existing agreements.

(1) No public utility that purchases, acquires, combines with, or merges with another public utility shall fail to honor an agreement entered into between the predecessor utility and a developer, property owner, or public utility customer unless:

(a) The agreement has expired;

(b) More than five (5) years has passed since the purchase, acquisition, combination, or merger; or

(c) The parties mutually agree to change or terminate the agreement.

(2) The commission is authorized to investigate and resolve complaints under this section pursuant to section 61-503, Idaho Code. The commission shall take action on such a complaint within forty-five (45) days after receipt.