(1) Amendment or rescission. The commission may propose, or may act in response to a petition, to alter, amend, or rescind any order that the commission has entered. Any such petition must comply with the requirements in WAC 480-07-870 for a petition for rehearing. The commission may take the action it has proposed or grant the petition only after providing:

(a) Notice of the petition or proposed commission action to the affected public service company or companies and to all parties in the underlying proceeding; and

(b) An opportunity for parties to respond in writing or at a hearing consistent with due process.

(2) Correction. The commission may act on its own initiative or on the motion of any party to correct obvious or ministerial errors in orders. The commission may enter a corrected order or make any corrections to the order by notice or letter without prior notice or opportunity to respond unless due process requires otherwise. The time for any available review of the corrections begins when the commission serves the corrected order, notice, or letter.