Before selling, leasing, or assigning any of its property or facilities which are necessary or useful in the performance of its duties to the public, or before acquiring property or facilities of another public utility, a telecommunications company subject to the provisions of chapter 80.12 RCW must obtain from the commission an order authorizing such transaction in accordance with chapters 80.12 RCW (Transfers of property) and 480-143 WAC (Commission general—Transfers of property).