---
type: "Bill"
title: "IEPA-AFFIRMATIVE DEF REMOVAL"
description: "Amends the Environmental Protection Act. Deletes a provision that requires a Clean Air Act Permit Program (CAAPP) permit to contain a provision which creates an emergency-related affirmative defense if certain requirements are met."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "103rd"
identifier: "SB 3506"
citation: "Illinois SB 3506 (103rd)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Ann M. Williams", "Laura Ellman"]
version_count: 4
action_count: 38
vote_count: 6
first_action: "2024-02-09"
last_action: "2024-08-09"
source: "openstates"
source_identifier: "ocd-bill/e691d33e-a6a4-4bfd-83c3-d0a7876c52a8"
source_url: "https://beta.ilga.gov/Legislation/BillStatus?DocNum=3506&GAID=17&DocTypeID=SB&LegId=153206&SessionID=112"
source_hash: "d65cf9945ad16d38560dfcf6e2faa2437d32b8843ee14e1a2f59357900241679"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-il"]
---

# Illinois SB 3506 (103rd) — IEPA-AFFIRMATIVE DEF REMOVAL

Amends the Environmental Protection Act. Deletes a provision that requires a Clean Air Act Permit Program (CAAPP) permit to contain a provision which creates an emergency-related affirmative defense if certain requirements are met.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://beta.ilga.gov/documents/legislation/103/SB/PDF/10300SB3506.pdf)
2. **Engrossed** (committee substitute) — [source](https://beta.ilga.gov/documents/legislation/103/SB/PDF/10300SB3506eng.pdf)
3. **House Amendment 001** (committee substitute) — [source](https://beta.ilga.gov/documents/legislation/103/SB/PDF/10300SB3506ham001.pdf)
4. **Enrolled** (enrolled) — [source](https://beta.ilga.gov/documents/legislation/103/SB/PDF/10300SB3506enr.pdf)

## Votes

- Energy and Public Utilities — **15–0** (pass) · lower
- Energy & Environment — **19–0** (pass) · lower
- Third Reading — **59–0** (pass) · lower
- Third Reading — **110–1** (pass) · lower
- Energy and Public Utilities — **15–0** (pass) · lower
- Concurrence — **59–0** (pass) · lower

## Sponsors

- Ann M. Williams — primary (person)
- Laura Ellman — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2024-02-09** Filed with Secretary by Sen. Laura Ellman `filing`
- **2024-02-09** First Reading `reading-1`
- **2024-02-09** Referred to Assignments
- **2024-02-20** Assigned to Energy and Public Utilities `referral-committee`
- **2024-03-14** Do Pass Energy and Public Utilities; 015-000-000
- **2024-03-14** Placed on Calendar Order of 2nd Reading March 20, 2024 `reading-2`
- **2024-03-21** Second Reading `reading-2`
- **2024-03-21** Placed on Calendar Order of 3rd Reading March 22, 2024
- **2024-04-10** Placed on Calendar Order of 3rd Reading **
- **2024-04-12** Third Reading - Passed; 059-000-000 `passage, reading-3`
- **2024-04-12** Arrived in House `introduction`
- **2024-04-12** Chief House Sponsor Rep. Ann M. Williams
- **2024-04-15** First Reading `reading-1`
- **2024-04-15** Referred to Rules Committee
- **2024-04-24** Assigned to Energy & Environment Committee `referral-committee`
- **2024-04-24** House Committee Amendment No. 1 Filed with Clerk by Rep. Ann M. Williams `amendment-introduction`
- **2024-04-24** House Committee Amendment No. 1 Referred to Rules Committee
- **2024-04-30** House Committee Amendment No. 1 Rules Refers to Energy & Environment Committee
- **2024-04-30** House Committee Amendment No. 1 Adopted in Energy & Environment Committee; by Voice Vote `amendment-passage`
- **2024-04-30** Do Pass as Amended / Short Debate Energy & Environment Committee; 019-000-000
- **2024-05-01** Placed on Calendar 2nd Reading - Short Debate `reading-2`
- **2024-05-08** Second Reading - Short Debate `reading-2`
- **2024-05-08** Placed on Calendar Order of 3rd Reading - Short Debate
- **2024-05-17** Third Reading/Final Action Deadline Extended-9(b) May 24, 2024
- **2024-05-22** Third Reading - Short Debate - Passed 110-001-000 `passage, reading-3`
- **2024-05-22** Secretary's Desk - Concurrence House Amendment(s) 1
- **2024-05-22** Placed on Calendar Order of Concurrence House Amendment(s) 1 - May 22, 2024
- **2024-05-23** House Committee Amendment No. 1 Motion to Concur Filed with Secretary Sen. Laura Ellman `filing`
- **2024-05-23** House Committee Amendment No. 1 Motion to Concur Referred to Assignments
- **2024-05-23** House Committee Amendment No. 1 Motion to Concur Assignments Referred to Energy and Public Utilities
- **2024-05-24** House Committee Amendment No. 1 Motion To Concur Recommended Do Adopt Energy and Public Utilities; 015-000-000
- **2024-05-24** House Committee Amendment No. 1 Senate Concurs 059-000-000
- **2024-05-24** Senate Concurs
- **2024-05-24** Passed Both Houses
- **2024-06-21** Sent to the Governor `executive-receipt`
- **2024-08-09** Governor Approved `executive-signature`
- **2024-08-09** Effective Date August 9, 2024
- **2024-08-09** Public Act . . . . . . . . . 103-1008 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e691d33e-a6a4-4bfd-83c3-d0a7876c52a8`. Confidence: reported (aggregated from official Illinois legislature records).