(1) Extensions of time, other than the time for filing petitions, continuances, and adjournments may be ordered by the board on its own motion or may be granted by it, in its discretion, on motion of any party showing good and sufficient cause therefor. For a waiver of the time limit in which to file the petition, see WAC 458-14-056(3).

(2) No one shall make or attempt to make any ex parte contact with board members except upon notice and opportunity for all parties to be present or to the extent required for the disposition of ex parte matters as authorized by law. No board member shall make or attempt to make any ex parte contact with any person regarding any issue in the proceeding, without notice and opportunity for all parties to participate, unless necessary to procedural aspects of maintaining an orderly process.