(1) Initial orders on brief adjudicative proceedings shall become final twenty-one days after service of the initial order unless:

(a) A petition for review of an initial order is served by certified mail, registered mail, or personal service upon the office, and copies shall be served on all parties. A petition for review of an initial order shall contain an explanation of the party's view of the matter and a statement of reasons why the initial order is incorrect; or

(b) On its own initiative, the office determines to review the matter and, within twenty-one days of service of the initial order, provides notice to the parties of the date by which a determination shall be made.

(2) If review is taken under subsection (1) of this section, each party shall be provided an opportunity to state its view of the matter, and a written order containing findings of fact, conclusions of law and order shall be entered and served upon the parties within twenty days of service of the initial order or the request for review, whichever is later.

(3) A request for review is deemed to be denied if the office does not act on the request within twenty days after the request is submitted.

(4) If administrative review is taken under subsection (1) of this section, the presiding officer may convert the matter to a full adjudicative proceeding.

(5) The director or his or her designee shall act as the reviewing officer and shall conduct a review of an initial order upon the timely service of a petition for review or upon his or her own motion. The reviewing officer shall adopt, modify, or reject the initial order; but the reviewing officer shall not take any action on review less favorable to any party without giving that party notice and opportunity to explain the party's view of the matter.

(6) The order on review shall be in writing, shall include a brief statement of the reasons for the decision, and shall be entered within twenty days after the date of the initial order or the petition for review, whichever is later. The order shall include a description of any further available administrative review or, if none is available, a notice that judicial review may be available.

(7) The record in a brief adjudicative proceeding shall consist of any documents regarding the matters that were considered or prepared by the presiding officer for the brief adjudicative proceedings and/or by the reviewing officer for any review.