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HB 4941 · Illinois · 104th · Billy

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HB 4941

Illinois · 104th legislative session · house

HB 4941OLD UNDERGROUND STORAGE TANKS

Status: Signed into law
Latest action: 2026-07-31 — Public Act . . . . . . . . . 104-0688
Primary sponsor: Joyce Mason (Democratic)

Track this bill View changes+125 / −104 words · Large

Sponsors

Joyce Mason (Democratic) · primaryprimary
Dagmara Avelar · cosponsor
Anthony DeLuca (Democratic) · cosponsor

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Diane Blair-Sherlock (Democratic) · cosponsor

Julie A. Morrison (Democratic) · primaryprimary

Andrew S. Chesney (Republican) · cosponsor

Jason Plummer (Republican) · cosponsor

Dagmara Avelar (Democratic) · cosponsor

Versions

IntroducedFeb 4, 2026
EngrossedApr 16, 2026
EnrolledMay 21, 2026
House Amendment 001Mar 12, 2026
House Amendment 002Apr 7, 2026
House Amendment 003Apr 15, 2026

Legislative history

Jul 31, 2026
Public Act . . . . . . . . . 104-0688
Jul 31, 2026
Effective Date January 1, 2027
Jul 31, 2026
Governor Approved
Jun 18, 2026
Sent to the Governor
May 21, 2026
Passed Both Houses
May 21, 2026
Third Reading - Passed; 059-000-000
May 21, 2026
Added as Alternate Co-Sponsor Sen. Jason Plummer
May 19, 2026
Placed on Calendar Order of 3rd Reading **
May 14, 2026
Placed on Calendar Order of 3rd Reading May 18, 2026
May 14, 2026
Second Reading
May 7, 2026
Placed on Calendar Order of 2nd Reading May 12, 2026
May 7, 2026
Added as Alternate Co-Sponsor Sen. Andrew S. Chesney
May 7, 2026
Do Pass Environment and Conservation; 008-000-000
Apr 28, 2026
Assigned to Environment and Conservation
Apr 21, 2026
Placed on Calendar Order of First Reading
Apr 21, 2026
Chief Senate Sponsor Sen. Julie A. Morrison
Apr 21, 2026
Arrive in Senate
Apr 21, 2026
First Reading
Apr 21, 2026
Referred to Assignments
Apr 16, 2026
Added Chief Co-Sponsor Rep. Anthony DeLuca

Official sources

Version 0PDF HTML
Version 1PDF HTML
Version 2PDF HTML
Version 3PDF HTML
Version 4PDF HTML
Version 5PDF HTML

Public ActDocument

About this page

Is this the official Illinois bill page?: No — this is Billy’s public legislative record for HB 4941. Official source links are listed above when publishers provide them.
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