70 ILCS 705/16.03
Appointed members of a board of fire commissioners shall possess the qualifications required of other officers of the fire protection district and by Section 16.02 of this Act, shall take oath, or affirmation, of office, give bond, and shall be subject to removal from office, in the same manner as other appointive officers of the fire protection district and consistent with the provisions of Section 16.02 hereof.
No more than 2 members of the board shall belong to the same political party existing in the municipality at the time of the appointments and as defined in Section 10-2 of the Election Code. If only 1 or no political party exists in the municipality at the time of the appointments, then state or national political party affiliation shall be considered in making the appointments. Party affiliation shall be determined by affidavit of the person appointed as a member of the board.
70 ILCS 705/16.03