Unless otherwise provided by law or rule:

1. (1) The standard of proof on all factual issues is preponderance of the evidence.
2. (2) The burden of proof for the final administrative decision of the commission rests with the commission.
3. (3) In any action to appeal the commission's final administrative decision, the appealing party shall bear the burden of proof.
4. (4) The burden of proof in certification matters is governed by WAC 136-06-070(13).

[Statutory Authority: RCW 43.101.080. WSR 24-07-042, § 139-03-070, filed 3/13/24, effective 4/13/24; WSR 00-17-017, § 139-03-070, filed 8/4/00, effective 9/4/00.]