820 ILCS 105/8
Every employer subject to any provision of this Act or of any order issued under this Act shall make and keep for a period of not less than 3 years, true and accurate records of the name, address and occupation of each of his employees, the rate of pay, and the amount paid each pay period to each employee, the hours worked each day in each work week by each employee, and such other information and make such reports therefrom to the Director as the Director may by regulation prescribe as necessary or appropriate for the enforcement of the provisions of this Act or of the regulations thereunder. Such records shall be open for inspection or transcription by the Director or his authorized representative at any reasonable time as limited by paragraph (a) of Section 7 of this Act. Every employer shall furnish to the Director or his authorized representative on demand a sworn statement of such records and information upon forms prescribed or approved by the Director. Each worker employed at the learner rate must be designated as such on the payroll record kept by the employer, with the learner's occupation shown.
820 ILCS 105/8