Senate bill · 104th
SB 1559
IDOT-TRAFFIC STUDIES
Progress
178 days from first to latest action, across 45 recorded actions.
Filed
Feb 4
Referred to committee
Feb 4
Heard in committee
Apr 11
Reported from committee
Apr 11
Passed first chamber
Apr 11
Passed second chamber
May 21
Sent to governor
Jun 18
Became law
Aug 1
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
Senate · Mar 18, 2025
Passed 15–0
15 Yea
0 Nay
4 Absent / not voting
Do Pass, Amendment 1
Senate · Mar 18, 2025
Passed 15–0
15 Yea
0 Nay
4 Absent / not voting
Do Pass, Amendment 2
Senate · Apr 8, 2025
Passed 19–0
19 Yea
0 Nay
0 Absent / not voting
Third Reading
Senate · Apr 11, 2025
Passed 52–0
52 Yea
0 Nay
7 Absent / not voting
Do Pass
House · Apr 30, 2025
Passed 12–0
12 Yea
0 Nay
0 Absent / not voting
Third Reading
House · May 21, 2025
Passed 111–0
111 Yea
0 Nay
7 Absent / not voting
Full history
Every action recorded by Illinois General Assembly.
Public Act . . . . . . . . . 104-0110
Aug 1, 2025 · Senate
Effective Date January 1, 2026
Aug 1, 2025 · Senate
Governor Approved
Aug 1, 2025 · Senate
Sent to the Governor
Jun 18, 2025 · Senate
Added Alternate Co-Sponsor Rep. Kelly M. Cassidy
May 21, 2025 · House
Passed Both Houses
May 21, 2025 · Senate
Third Reading - Short Debate - Passed 111-000-000
May 21, 2025 · House
Added Alternate Co-Sponsor Rep. Anne Stava
May 20, 2025 · House
Placed on Calendar Order of 3rd Reading - Short Debate
May 16, 2025 · House
Second Reading - Short Debate
May 16, 2025 · House
Added Alternate Co-Sponsor Rep. Wayne A. Rosenthal
May 9, 2025 · House
Added Alternate Co-Sponsor Rep. Michael J. Coffey, Jr.
May 9, 2025 · House
Added Alternate Co-Sponsor Rep. Theresa Mah
May 9, 2025 · House
Added Alternate Co-Sponsor Rep. Will Guzzardi
May 9, 2025 · House
Added Alternate Co-Sponsor Rep. Martha Deuter
May 8, 2025 · House
Added Alternate Chief Co-Sponsor Rep. Bradley Fritts
Apr 30, 2025 · House
Added Alternate Chief Co-Sponsor Rep. Margaret Croke
Apr 30, 2025 · House
Added Alternate Chief Co-Sponsor Rep. Matt Hanson
Apr 30, 2025 · House
Added Alternate Chief Co-Sponsor Rep. Jaime M. Andrade, Jr.
Apr 30, 2025 · House
Placed on Calendar 2nd Reading - Short Debate
Apr 30, 2025 · House
Do Pass / Short Debate Transportation: Vehicles & Safety; 012-000-000
Apr 30, 2025 · House
Assigned to Transportation: Vehicles & Safety Transportation: Vehicles and Safety
Apr 17, 2025 · House
Referred to Rules Committee Rules
Apr 11, 2025 · House
First Reading
Apr 11, 2025 · House
Chief House Sponsor Rep. Ann M. Williams
Apr 11, 2025 · House
Arrived in House
Apr 11, 2025 · House
Third Reading - Passed; 052-000-000
Apr 11, 2025 · Senate
Placed on Calendar Order of 3rd Reading April 11, 2025
Apr 10, 2025 · Senate
Senate Floor Amendment No. 2 Adopted; Feigenholtz
Apr 10, 2025 · Senate
Second Reading
Apr 10, 2025 · Senate
Senate Floor Amendment No. 2 Recommend Do Adopt Transportation; 019-000-000
Apr 8, 2025 · Senate
Senate Floor Amendment No. 2 Assignments Refers to Transportation
Apr 8, 2025 · Senate
Senate Floor Amendment No. 2 Referred to Assignments
Apr 3, 2025 · Senate
Senate Floor Amendment No. 2 Filed with Secretary by Sen. Sara Feigenholtz
Apr 3, 2025 · Senate
Placed on Calendar Order of 2nd Reading March 20, 2025
Mar 19, 2025 · Senate
Do Pass as Amended Transportation; 015-000-000
Mar 19, 2025 · Senate
Senate Committee Amendment No. 1 Adopted
Mar 18, 2025 · Senate
Senate Committee Amendment No. 1 Assignments Refers to Transportation
Mar 18, 2025 · Senate
Senate Committee Amendment No. 1 Referred to Assignments
Mar 14, 2025 · Senate
Senate Committee Amendment No. 1 Filed with Secretary by Sen. Sara Feigenholtz
Mar 14, 2025 · Senate
Postponed - Transportation
Mar 5, 2025 · Senate
Assigned to Transportation Transportation
Feb 11, 2025 · Senate
Referred to Assignments Assignments
Feb 4, 2025 · Senate
First Reading
Feb 4, 2025 · Senate
Filed with Secretary by Sen. Sara Feigenholtz
Feb 4, 2025 · Senate
Authors
and 11 coauthors or sponsors
Show 11 more
- Will Guzzardi cosponsorD
- Margaret Croke cosponsorD
- Wayne Rosenthal cosponsorR
- Brad Fritts cosponsorR
- Theresa Mah cosponsorD
- Matt Hanson cosponsorD
- Jaime Andrade cosponsorD
- Marti Deuter cosponsorD
- Kelly Cassidy cosponsorD
- Mike Coffey cosponsorR
- Anne Stava cosponsorD
In committee
- Assignments
Senate
Referred Feb 4, 2025 · reported after 7 days
- Transportation
Senate
Referred Feb 11, 2025 · never reported
- Rules
House
Referred Apr 11, 2025 · reported after 6 days
- Transportation: Vehicles and Safety
House
Referred Apr 17, 2025 · never reported