Illinois · 104th Regular Session · Bill
SB 1559: IDOT-TRAFFIC STUDIES
Enacted Official data
- Introduced
- In committee
- Passed one chamber
- Passed both chambers
- Enacted
Last official action: ·Record last updated:
Plain-language summary
SB 1559 is a bill introduced in the Illinois Senate on February 4, 2025. According to its official title, it concerns: IDOT-TRAFFIC STUDIES. Primary sponsor: Sara Feigenholtz (Democratic), Ann Williams (Democratic). It lists 11 additional sponsors. Most recent recorded action (August 1, 2025): Public Act . . . . . . . . . 104-0110.
Generated automatically from the official title, sponsor list, and status record only. It does not characterize the bill’s purpose or effects. How summaries are written
Sponsors
Sponsors by party (alphabetical): Democratic 10 · Republican 3
| Name | Role | Party | Chamber | District |
|---|---|---|---|---|
| Sara Feigenholtz | Primary sponsor | Democratic | Senate | 6 |
| Ann Williams | Primary sponsor | Democratic | House | 11 |
| Jaime Andrade | Co-sponsor | Democratic | House | 40 |
| Kelly Cassidy | Co-sponsor | Democratic | House | 14 |
| Mike Coffey | Co-sponsor | Republican | House | 95 |
| Margaret Croke | Co-sponsor | Democratic | House | 12 |
| Marti Deuter | Co-sponsor | Democratic | House | 45 |
| Brad Fritts | Co-sponsor | Republican | House | 74 |
| Will Guzzardi | Co-sponsor | Democratic | House | 39 |
| Matt Hanson | Co-sponsor | Democratic | House | 83 |
| Theresa Mah | Co-sponsor | Democratic | House | 24 |
| Wayne Rosenthal | Co-sponsor | Republican | House | 108 |
| Anne Stava | Co-sponsor | Democratic | House | 81 |
“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.
Recent official actions
- Public Act . . . . . . . . . 104-0110
- Effective Date January 1, 2026
- Governor Approved
- Sent to the Governor
- Added Alternate Co-Sponsor Rep. Kelly M. Cassidy
- Passed Both Houses
- Third Reading - Short Debate - Passed 111-000-000
- Added Alternate Co-Sponsor Rep. Anne Stava
- Placed on Calendar Order of 3rd Reading - Short Debate
- Second Reading - Short Debate
- Added Alternate Co-Sponsor Rep. Wayne A. Rosenthal
- Added Alternate Co-Sponsor Rep. Michael J. Coffey, Jr.
Showing 12 most recent of 40 actions. Full history