(1) In the event that a public employer and public employees are in disagreement as to the selection of a bargaining representative, the commission shall be invited to intervene as is provided in *RCW 41.56.090, 41.56.211, 41.56.221, and 41.56.240.
(2) If a single employee organization is the exclusive bargaining representative for two or more units, upon petition by the employee organization, the units may be consolidated into a single larger unit if the commission considers the larger unit to be appropriate. If consolidation is appropriate, the commission shall certify the employee organization as the exclusive bargaining representative of the new unit.