65 ILCS 5/10-1-4
Persons transferred from the employment of a park district by virtue of "An Act in relation to the exchange of certain functions, property and personnel among cities, and park districts having coextensive geographic areas and populations in excess of 500,000," approved July 5, 1957, as heretofore and hereafter amended, shall, without examination, be assigned to positions in the classified civil service of the municipality, so far as may be practicable, having duties and responsibilities equivalent to their park district employment. For the purpose of establishing the civil service status of park policemen transferred to the municipality, any rank above the rank of captain shall not be recognized.
As provided in said Act of 1957, the eligible registers and reemployment registers of the park district civil service board as to positions and persons so transferred shall remain in force and effect as eligible and reemployment registers of the civil service commission, subject to the authority of the commission, in its discretion, to cancel such eligible registers, or portions thereof, as have been in force more than 2 years.
Employees so transferred shall have the same standing, grade, class or rank which they held in the classified service of the park district from which they were transferred. For the purpose of determining seniority in class, grade or rank, each employee shall be credited with the time served by him in the employment held by him on the date of such transfer.
If this Division 1 exempts from its provisions any position held by an employee transferred under said Act of 1957, to the municipality, the employee so transferred shall be given a position in the classified civil service as nearly comparable in responsibilities and duties to his former employment as it may be possible to approximate.
65 ILCS 5/10-1-4