Ill. Admin. Code tit. 83 § 605.304
Air conditioning or ventilating system
Boiler, furnace, hot-water heater, or automatic stoker
Bulkhead
Burner system, gas, oil, or stoker
Cesspool or septic tank
Chimney
Coal or ash conveying system
Door and frame
Dormer or monitor
Elevator complete with operator mechanism
Equipment item, such as motor, generator, engine, turbine, pump, compressor, ventilating fan, air washer, elevator or similar item of equipment includible in structures with or without associated wiring, control equipment, etc.
Fence
Fire escape system
Fire protection system
Floor (complete)
Foundation when includible in structures
House lighting or power panel
Landscaping (complete project)
Lighting fixtures, with or without associated wiring and conduit
Manhole or catch basin
Radiator
Refrigeration system
Retaining wall
Road, path, pavement or walk
Roof, with or without supporting members (a structure of irregular shape having more than one roof level may have several isolated roofs, each of which shall be considered an entire roof. In the case of structures to which lateral extensions have been made even though having but one roof level, that part of the roof covering an entire section built at one time shall be considered an entire roof).
Screen
Sewer run between catch basin or manhole
Sky-light or ventilator
Stairway (complete between floor or operating level)
Storage bin (complete)
Storm window or storm door
Structure
Substructure
Superstructure
Tank
Tunnel, subway or areaway
Vault
Wall
Window and frame
Yard drainage system
Yard lighting system
Ill. Admin. Code tit. 83, § 605.304