ILLINOIS ENERGY CODE
Current State Energy Code: 2021 Illinois Energy Code
Model Code: IECC 2021
Previous State Energy Code: 2018 Illinois Energy Code
Previous Model Code: IECC 2018
The 2021 Illinois Energy Code is based on the 2021 IECC. This edition of the Illinois Energy Code went into effect on 01/01/2024. The previous version of the Illinois energy code was based on the 2018 IECC.
Illinois has also developed the Illinois Stretch Code, set for adoption by municipalities by 06/30/2024. The training course now includes a module about the Stretch Code.
Illinois Incentives and Rebates:
Database of State Incentives for Renewables & Efficiency® - DSIRE (dsireusa.org)
Want to learn more about your States' local energy code?
- Key amendments to the model code.
- Key Changes between previous State versions.
These trainings are intended to educate Raters, Code Officials, and other building professionals on the latest code requirements, gain an understanding of energy codes across the US, and understand the statewide amendments compared to the adopted IECC model code. The course is available on demand as interactive eLearning modules.