70 ILCS 705/16.05
The board shall make rules (1) to carry out the purpose of Sections 16.01 to 16.18 inclusive, and (2) for appointments and removals in accordance with the provisions of such sections. The board, from time to time, may make changes in these rules.
All these rules and changes therein shall be printed immediately for distribution. The board shall give notice (1) of the places where the printed rules may be obtained, and (2) of the date, not less than ten days subsequent to the time of publication, when the rules or changes therein shall go into operation. This notice shall be published in one or more newspapers published in the fire protection district, or, if no newspaper is published therein, then in one or more newspapers with a general circulation within the fire protection district. These rules of the board shall apply only to the conduct of examinations for original appointments, for promotions, and to the conduct of hearings on charges brought against a member of the fire department. No such rule shall be made by the board to govern the operation of the fire department or the conduct of its members unless the board of trustees specifically authorizes the board of fire commissioners to make such rules; however, the board of trustees may also rescind such authorization.
70 ILCS 705/16.05