An order issued under WAC 391-25-390 or 391-25-510 and any rulings in the proceedings up to the issuance of the order, as well as rulings that the employer or employees are subject to the jurisdiction of the commission, may be appealed to the commission as follows:

(1) The due date for a notice of appeal shall be twenty days following the date of issuance of the order being appealed. The time for filing a notice of appeal cannot be extended.

(2) Where an order has been appealed, the due date for a notice of cross-appeal by other parties shall be seven days after the last date on which a notice of appeal could be timely. The time for filing a notice of cross-appeal cannot be extended.

(3) A notice of appeal or notice of cross-appeal shall identify, in separate numbered paragraphs, the specific rulings, findings of fact, conclusions of law, or orders claimed to be in error.

(4) A party which desires to cite or reassert a document previously filed in the matter shall do so by reference to the document already on file, and shall not file or attach another copy of the document to papers filed regarding an appeal.

(5) A notice of appeal or notice of cross-appeal shall be filed at the commission's Olympia office as required by WAC 391-08-120(1), and copies shall be served on all other parties as required by WAC 391-08-120 (3) and (4).

(6) The due date for any appeal brief which the party filing an appeal or cross-appeal desires to have considered by the commission shall be fourteen days following the filing of its notice of appeal or notice of cross-appeal. Any brief shall be filed at the commission's Olympia office as required by WAC 391-08-120(1), and copies shall be served on all other parties as required by WAC 391-08-120 (3) and (4).

(7) The due date for any responsive brief which a party desires to have considered by the commission shall be fourteen days following the date on which that party is served with an appeal brief. Any brief shall be filed at the commission's Olympia office as required by WAC 391-08-120(1), and copies shall be served on all other parties as required by WAC 391-08-120 (3) and (4).

(8) The executive director or designee may extend the due date for an appeal brief or responsive brief. Such requests shall only be considered if made on or before the date the brief is due, and in compliance with WAC 391-08-180. Extensions of time shall not be routine or automatic.

(9) A party filing a brief under this section must limit its total length to twenty-five pages (double-spaced, 12-point type), unless:

(a) It files and serves a motion for permission to file a longer brief in order to address novel and/or complex issues raised by the appeal; and

(b) The commission or its designee grants such a motion for good cause shown. Any motion filed under this subsection shall toll the due date for briefs under subsections (1) and (2) of this section until the commission or its designee responds to such motion.