All municipal officers and employees of regular offices and departments are under IMRF if their positions qualify. Employees of semi-autonomous units listed below are also included:
Public libraries operating under the Illinois Local Library Act (see 3.70 F. Libraries)
Board of election commissioners
Community centers
Utilities owned by municipalities
City hospitals (see 3.70 D. Hospitals, Sheltered Care and Nursing Homes, and Sanitariums)
Mental health boards or commissions
Public health departments
The following governmental units are not a part of a municipality:
Public libraries operating under the Public Library District Act (see 3.70 F. Libraries)
Park and recreation districts operating under the Park District Code
Hospitals operating under the Hospital District Act (see 3.70 D. Hospitals, Sheltered Care and Nursing Homes, and Sanitariums)
Water commissions or water and sewer commissions serving more than one municipality
Public health districts
Water distribution systems operated by public water districts