U.S. code adoption
Illinois — energy & appliance code adoption
Not yet determined for Illinois. This page summarizes electrical (NEC), appliance-listing (UL 858), fire-code, and energy-storage (UL 9540 / NFPA 855) code adoption for Illinois, with primary sources.
Is UL 858 required in Illinois?
Not yet determined for Illinois. Outside of municipal adoption, residential electrical work in unincorporated areas may have no AHJ enforcement.
Are NRTL-listed (UL / ETL / CSA) appliances required in Illinois?
Illinois has no statewide electrical code, so listing requirements are set by local AHJs. Illinois has no statewide residential electrical code. Adoption is by municipality; Chicago has its own electrical code that diverges from NEC.
Which edition of the NEC does Illinois use?
Illinois has no statewide NEC adoption; the applicable edition of the National Electrical Code is set by local authorities having jurisdiction (AHJs).
Is UL 9540 required for residential energy storage in Illinois?
Not yet determined for Illinois. Illinois has no statewide fire code for dwellings. OSFM enforces NFPA 1 only for state-licensed facilities; Chicago and home-rule municipalities adopt their own codes.
Is UL 9540A fire-propagation testing required in Illinois?
Not yet determined for Illinois.
What is the residential energy-storage capacity limit in Illinois?
Illinois has no jurisdiction-specific residential energy-storage capacity cap beyond the model-code default (typically 20 kWh per dwelling unit under IFC §1207 / NFPA 855).
Which fire code does Illinois enforce?
Illinois enforces other.
Code adoption summary
| NEC edition | No statewide adoption |
|---|---|
| Appliance listing (UL 858) | Unknown |
| NRTL listing requirement | No statewide code |
| Fire code | other |
| UL 9540 (residential ESS) | Unknown |
| UL 9540A propagation test | Unknown |
| Residential ESS cap | Model-code default |
Local authorities in Illinois
Sources
- NFPA — NEC enforcement maps
- DSIRE Insight — Plug-In Legislation
- Illinois General Assembly — 103rd GA bill search