Bill Amendment: IL HB3510 | 2025-2026 | 104th General Assembly

NOTE: For additional amemendments please see the Bill Drafting List

---

Bill Title: BUILDING-STRETCH CODES

Status: 2025-08-15 - Public Act . . . . . . . . . 104-0315 [HB3510 Detail]

Download: Illinois-2025-HB3510-House_Amendment_001.html

---

Rep. Dave Vella

Filed: 3/18/2025

10400HB3510ham001 LRB104 10624 HLH 23835 a
AMENDMENT TO HOUSE BILL 3510
AMENDMENT NO. ______. Amend House Bill 3510 by replacing
everything after the enacting clause with the following:
"Section 5. The Energy Efficient Building Act is amended
by changing Section 55 as follows:
(20 ILCS 3125/55)
Sec. 55. Illinois Stretch Energy Code.
(a) The Board, in consultation with the Agency, shall
create and adopt the Illinois Stretch Energy Code, to allow
municipalities and projects authorized or funded by the Board
to achieve more energy efficiency in buildings than the
Illinois Energy Conservation Code through a consistent pathway
across the State. The Illinois Stretch Energy Code shall be
available for adoption by any municipality and shall set
minimum energy efficiency requirements, taking the place of
the Illinois Energy Conservation Code within any municipality

10400HB3510ham001 - 2 - LRB104 10624 HLH 23835 a
that adopts the Illinois Stretch Energy Code.
(b) The Illinois Stretch Energy Code shall have separate
components for commercial and residential buildings, which may
be adopted by the municipality jointly or separately.
(c) The Illinois Stretch Energy Code shall apply to all
projects to which an energy conservation code is applicable
that are authorized or funded in any part by the Board after
July 1, 2024.
(d) Development of the Illinois Stretch Energy Code shall
be completed and available for adoption by municipalities by
June 30, 2024.
(e) Consistent with the requirements under paragraph (2.5)
of subsection (g) of Section 8-103B of the Public Utilities
Act and under paragraph (2) of subsection (j) of Section 8-104
of the Public Utilities Act, municipalities may adopt the
Illinois Stretch Energy Code and may use utility programs to
support compliance with the Illinois Stretch Energy Code. The
amount of savings from such utility efforts that may be
counted toward achievement of their annual savings goals shall
be based on reasonable estimates of the increase in savings
resulting from the utility efforts, relative to reasonable
approximations of what would have occurred absent the utility
involvement.
(f) The Illinois Stretch Energy Code's residential
components shall:
(1) apply to residential buildings as defined under

10400HB3510ham001 - 3 - LRB104 10624 HLH 23835 a
Section 10;
(2) set performance targets using a site energy index
with reductions relative to the 2006 International Energy
Conservation Code; and
(3) include stretch energy codes with site energy
index standards and adoption dates as follows: by no later
than June 30, 2024, the Board shall create and adopt a
stretch energy code with a site energy index no greater
than 0.50 of the 2006 International Energy Conservation
Code; by no later than December 31, 2026 December 31,
2025, the Board shall create and adopt a stretch energy
code with a site energy index no greater than 0.40 of the
2006 International Energy Conservation Code, unless the
Board identifies unanticipated burdens associated with the
stretch energy code adopted in 2023 or 2024, in which case
the Board may adopt a stretch energy code with a site
energy index no greater than 0.42 of the 2006
International Energy Conservation Code, provided that the
more relaxed standard has a site energy index that is at
least 0.05 more restrictive than the 2024 International
Energy Conservation Code; by no later than December 31,
2029 December 31, 2028, the Board shall create and adopt a
stretch energy code with a site energy index no greater
than 0.33 of the 2006 International Energy Conservation
Code, unless the Board identifies unanticipated burdens
associated with the stretch energy code adopted in 2025,

10400HB3510ham001 - 4 - LRB104 10624 HLH 23835 a
in which case the Board may adopt a stretch energy code
with a site energy index no greater than 0.35 of the 2006
International Energy Conservation Code, but only if that
more relaxed standard has a site energy index that is at
least 0.05 more restrictive than the 2027 International
Energy Conservation Code; and by no later than December
31, 2032 December 31, 2031, the Board shall create and
adopt a stretch energy code with a site energy index no
greater than 0.25 of the 2006 International Energy
Conservation Code.
(g) The Illinois Stretch Energy Code's commercial
components shall:
(1) apply to commercial buildings as defined under
Section 10;
(2) set performance targets using a site energy index
with reductions relative to the 2006 International Energy
Conservation Code; and
(3) include stretch energy codes with site energy
index standards and adoption dates as follows: by no later
than June 30, 2024, the Board shall create and adopt a
stretch energy code with a site energy index no greater
than 0.60 of the 2006 International Energy Conservation
Code; by no later than December 31, 2026 December 31,
2025, the Board shall create and adopt a stretch energy
code with a site energy index no greater than 0.50 of the
2006 International Energy Conservation Code; by no later

10400HB3510ham001 - 5 - LRB104 10624 HLH 23835 a
than December 31, 2029 December 31, 2028, the Board shall
create and adopt a stretch energy code with a site energy
index no greater than 0.44 of the 2006 International
Energy Conservation Code; and by no later than December
31, 2032 December 31, 2031, the Board shall create and
adopt a stretch energy code with a site energy index no
greater than 0.39 of the 2006 International Energy
Conservation Code.
(h) The process for the creation of the Illinois Stretch
Energy Code includes:
(1) within 60 days after the effective date of this
amendatory Act of the 102nd General Assembly, the Capital
Development Board shall meet with the Illinois Energy Code
Advisory Council to advise and provide technical
assistance and recommendations to the Capital Development
Board for the Illinois Stretch Energy Code, which shall:
(A) advise the Capital Development Board on
creation of interim performance targets, code
requirements, and an implementation plan for the
Illinois Stretch Energy Code;
(B) recommend amendments to proposed rules issued
by the Capital Development Board;
(C) recommend complementary programs or policies;
(D) complete recommendations and development for
the Illinois Stretch Energy Code elements and
requirements by December 31, 2023;

10400HB3510ham001 - 6 - LRB104 10624 HLH 23835 a
(2) As part of its deliberations, the Illinois Energy
Code Advisory Council shall actively solicit input from
other energy code stakeholders and interested parties.
(Source: P.A. 102-662, eff. 9-15-21; 103-4, eff. 5-31-23.)".