65 ILCS 5/10-1-8
In the event that any applicant for an office or place in the civil service (who has been found eligible for appointment and whose name has been placed upon the register provided for in this Division 1) has not been appointed to such office or place within 60 days from the date of his examination as to physical qualifications and health, the commission shall cause a second examination to be made of such applicant prior to his appointment and within 60 days of such appointment, which second examination shall be practical in character and shall relate to the cardiac, pulmonary, arterial, renal and sane condition of the applicant. If, upon such second examination, the physical, or mental condition of the applicant shall be found to be less than the minimum standard fixed by the rules of such commission, the applicant shall not be appointed. The name of such applicant shall be retained upon the register of candidates eligible for appointment and when again reached for certification and appointment such applicant shall be again examined as herein provided, and if the physical or mental condition of such applicant shall again be found to be less than the minimum standard fixed by the rules of such commission, such applicant shall not be appointed and the name of such applicant shall be removed from the register.
65 ILCS 5/10-1-8