(1) A petition to "decertify" under WAC 391-25-070 (6)(c) or 391-25-090(2) may not alter the existing bargaining unit configuration during the representation proceeding;

(2) If an organization files a motion for intervention under WAC 391-25-190 in a decertification proceeding, the intervening organization may not seek a bargaining unit configuration different from the existing bargaining unit configuration.