Illinois 104th General Assembly Status: Introduced 6 R cosponsors

HB4124      — UNCAP AFFORDABLE POWER ACT

Last action — Referred to Rules Committee

  1. 1
    Introduced
  2. 2
    In Committee
  3. 3
    Passed House
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill has been introduced in the House. Introduced September 16, 2025. It must pass committee before a floor vote.

Next likely step: a committee referral and hearing.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

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A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Not enough signal yet

Not enough signal yet to read this bill's trajectory — we surface a likelihood only once there's real movement (stage, sponsorship, committee, or votes) to point to.

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

Summary

Specifies that the amendatory Act may be referred to as the Uncap Affordable Power Act. Amends the Illinois Power Agency Act, the Public Utilities Act, and the Environmental Protection Act. Provides, in each of those Acts, that it is the policy of the State not to regulate carbon dioxide emissions that arise from the combustion of fossil fuels for the purpose of generating electrical power. Provides that, beginning on the effective date of the amendatory Act, the Illinois Power Agency, the Illinois Commerce Commission, and the Illinois Environmental Protection Agency shall not regulate carbon dioxide emissions that arise from the combustion of fossil fuels for the purpose of generating electrical power. Removes carbon dioxide from the list of regulated greenhouse gases in the Environmental Protection Act. Repeals from the Environmental Protection Act a provision that provides for the regulation of greenhouse gas emissions from electric generating units and large greenhouse gas-emitting units. Makes other conforming changes. Effective immediately.

Bill Text

We don't have the full text on file for this bill yet.

Read HB4124 on the official Illinois source →

Action History

  1. Referred to Rules Committee

  2. First Reading

  3. Added Co-Sponsor Rep. David Friess

  4. Added Co-Sponsor Rep. Jed Davis

  5. Added Co-Sponsor Rep. Jason R. Bunting

  6. Added Co-Sponsor Rep. Adam M. Niemerg

  7. Added Co-Sponsor Rep. Travis Weaver

  8. Filed with the Clerk by Rep. Brad Halbrook

Sponsors

Sponsorship breakdown

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1 sponsors · 5 co-sponsors · 177 not signed on

Sponsors (1)

Co-sponsors (5)

Not signed on (177)

177 members have not signed on to this bill.

Show all 177 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

environment energy
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

What does HB4124      do?
Specifies that the amendatory Act may be referred to as the Uncap Affordable Power Act. Amends the Illinois Power Agency Act, the Public Utilities Act, and the Environmental Protection Act. Provides, in each of those Acts, that it is the policy of the State not to regulate carbon dioxide emissions that arise from the combustion of fossil fuels for the purpose of generating electrical power. Provides that, beginning on the effective date of the amendatory Act, the Illinois Power Agency, the Illinois Commerce Commission, and the Illinois Environmental Protection Agency shall not regulate carbon dioxide emissions that arise from the combustion of fossil fuels for the purpose of generating electrical power. Removes carbon dioxide from the list of regulated greenhouse gases in the Environmental Protection Act. Repeals from the Environmental Protection Act a provision that provides for the regulation of greenhouse gas emissions from electric generating units and large greenhouse gas-emitting units. Makes other conforming changes. Effective immediately.
Who sponsors HB4124     ?
HB4124      is sponsored by Brad Halbrook (Republican), Travis Weaver (Republican), Adam M. Niemerg (Republican), Jason R. Bunting (Republican), Jed Davis (Republican), and David Friess (Republican).
What is the current status of HB4124     ?
This bill has been introduced in the House. Introduced September 16, 2025. It must pass committee before a floor vote.
Where can I track HB4124     ?
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Last checked for changes 3 months ago · updated continuously

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