House bill · 104th
HB 4941
OLD UNDERGROUND STORAGE TANKS
Progress
177 days from first to latest action, across 47 recorded actions.
Filed
Feb 4
Referred to committee
Feb 6
Heard in committee
Apr 7
Reported from committee
Apr 7
Passed first chamber
Apr 16
Passed second chamber
May 21
Sent to governor
Jun 18
Became law
Jul 31
Filled marks are milestones (committee report, floor passage, governor action). Larger marks hold more same-day actions.
Record votes
Each dot is one member, grouped by how they voted.
Do Pass
House · Mar 18, 2026
Passed 27–0
27 Yea
0 Nay
2 Absent / not voting
Do Pass, Amendment 2
House · Apr 7, 2026
Passed 25–0
25 Yea
0 Nay
4 Absent / not voting
Do Pass, Amendment 3
House · Apr 15, 2026
Passed 24–0
24 Yea
0 Nay
5 Absent / not voting
Third Reading
House · Apr 16, 2026
Passed 109–0
109 Yea
0 Nay
9 Absent / not voting
Do Pass
Senate · May 7, 2026
Passed 8–0
8 Yea
0 Nay
2 Absent / not voting
Third Reading
Senate · May 21, 2026
Passed 59–0
59 Yea
0 Nay
0 Absent / not voting
Full history
Every action recorded by Illinois General Assembly.
Public Act . . . . . . . . . 104-0688
Jul 31, 2026 · House
Effective Date January 1, 2027
Jul 31, 2026 · House
Governor Approved
Jul 31, 2026 · House
Sent to the Governor
Jun 18, 2026 · House
Passed Both Houses
May 21, 2026 · House
Third Reading - Passed; 059-000-000
May 21, 2026 · Senate
Added as Alternate Co-Sponsor Sen. Jason Plummer
May 21, 2026 · Senate
Placed on Calendar Order of 3rd Reading **
May 19, 2026 · Senate
Placed on Calendar Order of 3rd Reading May 18, 2026
May 14, 2026 · Senate
Second Reading
May 14, 2026 · Senate
Added as Alternate Co-Sponsor Sen. Andrew S. Chesney
May 7, 2026 · Senate
Placed on Calendar Order of 2nd Reading May 12, 2026
May 7, 2026 · Senate
Do Pass Environment and Conservation; 008-000-000
May 7, 2026 · Senate
Assigned to Environment and Conservation Environment and Conservation
Apr 28, 2026 · Senate
Referred to Assignments Assignments
Apr 21, 2026 · Senate
First Reading
Apr 21, 2026 · Senate
Chief Senate Sponsor Sen. Julie A. Morrison
Apr 21, 2026 · Senate
Placed on Calendar Order of First Reading
Apr 21, 2026 · Senate
Arrive in Senate
Apr 21, 2026 · Senate
Added Co-Sponsor Rep. Diane Blair-Sherlock
Apr 16, 2026 · House
Added Chief Co-Sponsor Rep. Anthony DeLuca
Apr 16, 2026 · House
House Floor Amendment No. 2 Tabled
Apr 16, 2026 · House
Third Reading - Short Debate - Passed 109-000-000
Apr 16, 2026 · House
Placed on Calendar Order of 3rd Reading - Short Debate
Apr 16, 2026 · House
House Floor Amendment No. 3 Adopted
Apr 16, 2026 · House
House Floor Amendment No. 2 Withdrawn by Rep. Joyce Mason
Apr 16, 2026 · House
House Floor Amendment No. 3 Recommends Be Adopted Energy & Environment Committee; 024-000-000 Energy and Environment
Apr 15, 2026 · House
House Floor Amendment No. 3 Rules Refers to Energy & Environment Committee
Apr 14, 2026 · House
House Floor Amendment No. 3 Referred to Rules Committee
Apr 14, 2026 · House
House Floor Amendment No. 3 Filed with Clerk by Rep. Joyce Mason
Apr 14, 2026 · House
Held on Calendar Order of Second Reading - Short Debate
Apr 10, 2026 · House
Second Reading - Short Debate
Apr 10, 2026 · House
Added Chief Co-Sponsor Rep. Dagmara Avelar
Apr 8, 2026 · House
House Floor Amendment No. 2 Recommends Be Adopted Energy & Environment Committee; 025-000-000 Energy and Environment
Apr 7, 2026 · House
House Floor Amendment No. 2 Rules Refers to Energy & Environment Committee
Mar 24, 2026 · House
House Floor Amendment No. 2 Referred to Rules Committee
Mar 19, 2026 · House
House Floor Amendment No. 2 Filed with Clerk by Rep. Joyce Mason
Mar 19, 2026 · House
Placed on Calendar 2nd Reading - Short Debate
Mar 19, 2026 · House
House Committee Amendment No. 1 Tabled
Mar 18, 2026 · House
Do Pass / Short Debate Energy & Environment Committee; 027-000-000
Mar 18, 2026 · House
House Committee Amendment No. 1 Rules Refers to Energy & Environment Committee
Mar 18, 2026 · House
House Committee Amendment No. 1 Referred to Rules Committee
Mar 12, 2026 · House
House Committee Amendment No. 1 Filed with Clerk by Rep. Joyce Mason
Mar 12, 2026 · House
Assigned to Energy & Environment Committee Energy and Environment
Mar 12, 2026 · House
Referred to Rules Committee Rules
Feb 6, 2026 · House
First Reading
Feb 6, 2026 · House
Filed with the Clerk by Rep. Joyce Mason
Feb 4, 2026 · House
Authors
and 5 coauthors or sponsors
Show 5 more
- Diane Blair-Sherlock cosponsorD
- Andrew Chesney cosponsorR
- Anthony DeLuca cosponsorD
- Jason Plummer cosponsorR
- Dee Avelar cosponsorD
In committee
- Rules
House
Referred Feb 6, 2026 · reported after 34 days
- Energy and Environment
House
Referred Mar 12, 2026 · heard Apr 7, 2026 · reported after 26 days
- Assignments
Senate
Referred Apr 21, 2026 · reported after 7 days
- Environment and Conservation
Senate
Referred Apr 28, 2026 · never reported