1.    If a party fails to attend or participate in a prehearing conference, hearing, or other stage of an adjudicative proceeding, the agency may enter and serve upon all parties written notice of default and a default order, including a statement of the grounds for default.

2.    Within seven days after service of the default notice, order, and grounds, the party against whom default was ordered may file a written motion requesting that the default order be vacated and stating the grounds relied upon. During the time within which a party may file a written motion under this section, or at the time of issuing notice and the default order, the agency may adjourn the proceedings or conduct them without the participation of the party against whom a default order was issued, having due regard for the interests of justice and the orderly and prompt conduct of the proceedings. If an agency conducts further proceedings necessary to complete the administrative action without the participation of a party in default, it shall determine all the issues involved, including those affecting the defaulting party.