Section 600.405  Illinois Residential Stretch Energy Code

a)         The 2021 IECC, including published errata but excluding published supplements available from the International Code Council at 500 New Jersey Avenue NW, 6^th Floor, Washington, DC  20001, phone: 1-888-ICC-SAFE (422-7233), www.iccsafe.org, is hereby incorporated into the Illinois Residential Stretch Energy Code, as described in this Subpart as applicable to residential buildings, with modifications outlined in subsection (c).

b)         All incorporations by reference in this Section are of the cited standards as they existed on the date specified.  These incorporations include no later editions or amendments.

c)         Modifications to the IECC

Under Section 55 of the EEB Act, when applying the Residential Stretch Energy Code to privately funded residential buildings, CDB may modify the incorporated standards to meet objectives outlined in the EEB Act.  Modifications, additions or omissions to the IECC are specified in Appendix C and are rules of the CDB and are not requirements of the IECC.

(Source:  Added at 48 Ill. Reg. 14276, effective January 1, 2025)