70 ILCS 1545/5
All persons employed by the city upon the effective date in positions related to the management, maintenance, supervision and operation of the parks and playgrounds transferred to the park district who held such positions by virtue of the classified civil service under Division 1 of Article 10 of the Illinois Municipal Code, as heretofore and hereafter amended, shall be transferred to the employment of the park district and be given a comparable civil service status under "An Act relating to the civil service in park systems," approved June 10, 1911, as amended, without examination. Eligible and re-employment registers of the civil service commission of the city pertaining to such positions of employment shall be transferred to the civil service board of the park district and accorded the same legal status in respect to persons designated therein as if such registers had been established under the procedures of the civil service board of the park district. The civil service board of the park district shall classify the positions of all employees so transferred and such employees shall be assigned to positions, so far as may be practicable, having duties and responsibilities equivalent to their city employment. The civil service board of the park district may, in its discretion, cancel any eligible register of the civil service commission of the city transferred to it as has been in force more than two years.
70 ILCS 1545/5