A judge shall not act as an arbitrator or a mediator or perform other judicial functions in a private capacity unless authorized by law.*
Wash. Code. Jud. Cond. 3.9
Comments
[1] This Rule does not prohibit a judge from participating in arbitration, mediation, or settlement conferences performed as part of assigned judicial duties. Rendering dispute resolution services apart from those duties, whether or not for economic gain, is prohibited unless it is authorized by law.
[2] Retired, part-time, or pro tempore judges may be exempt from this section. (See Application.)