Illinois HB 3510: BUILDING-STRETCH CODES

Status: Public Act . . . . . . . . . 104-0315 (as of 2025-08-15)

State: Illinois · Session: 104th · Bill: HB 3510

Sponsors: Bill Cunningham, Matt Hanson, Dave Vella

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HB3510 EnrolledLRB104 10624 HLH 20700 b

1 AN ACT concerning State government.

2 Be it enacted by the People of the State of Illinois, 

3represented in the General Assembly:

4 Section 5. The Energy Efficient Building Act is amended by 

5changing Section 55 as follows:

6 (20 ILCS 3125/55)

7 Sec. 55. Illinois Stretch Energy Code.

8 (a) The Board, in consultation with the Agency, shall 

9create and adopt the Illinois Stretch Energy Code, to allow 

10municipalities and projects authorized or funded by the Board 

11to achieve more energy efficiency in buildings than the 

12Illinois Energy Conservation Code through a consistent pathway 

13across the State. The Illinois Stretch Energy Code shall be 

14available for adoption by any municipality and shall set 

15minimum energy efficiency requirements, taking the place of 

16the Illinois Energy Conservation Code within any municipality 

17that adopts the Illinois Stretch Energy Code.

18 (b) The Illinois Stretch Energy Code shall have separate 

19components for commercial and residential buildings, which may 

20be adopted by the municipality jointly or separately.

21 (c) The Illinois Stretch Energy Code shall apply to all 

22projects to which an energy conservation code is applicable 

23that are authorized or funded in any part by the Board after 

HB3510 Enrolled- 2 -LRB104 10624 HLH 20700 b

1July 1, 2024.

2 (d) Development of the Illinois Stretch Energy Code shall 

3be completed and available for adoption by municipalities by 

4June 30, 2024.

5 (e) Consistent with the requirements under paragraph (2.5

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