70 ILCS 705/16.11b

The provisions of Section 16.11a do not apply: (1) To the person in command of a fire protection district fire department; (2) To employees of a fire protection district fire department who are employed subject to call; or (3) To the members or employees of a fire protection district fire department, when required to remain on duty by the marshal or chief officer or any of his aides on account of a serious emergency caused by conflagration, riot, or other causes.