(1) The commission has power either on receipt of a complaint or protest or on its own motion to suspend the rates, fares, charges, rentals or tolls of any public service company as provided in RCW 81.04.130.

(2) No tariff or any part of a tariff will be suspended on a complaint or protest unless such complaint or protest is filed in compliance with the commission's rules of practice and procedure.

(3) When a tariff or any part of a tariff is suspended by the commission, supplements shall be filed as provided in WAC 480-149-110(10).