(1) The Commission of Industrial Relations shall be composed of five commissioners appointed by the Governor, with the advice and consent of the Legislature. The commissioners shall be representative of the public. Each commissioner shall be appointed and hold office for a term of six years and until a successor has qualified. In case of a vacancy, the Governor shall appoint a successor to fill the vacancy for the unexpired term.

(2) Any commissioner may be removed by the Governor for the same causes as a judge of the district court may be removed.

(3) The commissioners shall, on July 1 of every odd-numbered year by a majority vote, select one of their number as presiding officer for the next two years, who shall preside at all hearings by the commission en banc, and shall assign the work of the commission to the several commissioners and perform such other supervisory duties as the needs of the commission may require. A majority of the commissioners shall constitute a quorum to transact business. The act or decision of any three of the commissioners shall in all cases be deemed the act or decision of the commission. Three commissioners shall preside over and decide all industrial disputes where the matter at issue is the comparability of wages, benefits, and terms and conditions of employment.

(4) The commission shall not be subject to the Administrative Procedure Act.