(1) Any orderly procedure. To take care of a problem for which no procedure is specified by this chapter, the Administrative Procedure Act, chapter 34.05 RCW, or the law against discrimination, chapter 49.60 RCW, any orderly procedure may be used. Appropriate procedures may be taken from the Washington civil rules for superior courts, the federal rules of civil procedure, or the rules of other administrative agencies of the state of Washington or of the United States.

(2) By chairperson. The chairperson of the commission or an administrative law judge may specify the procedure to be used to dispose of any matter not covered by this chapter, or any matter covered by a rule that has been waived or altered in the interest of justice under authority of WAC 162-08-013.