The legislation was introduced in bill HB303 on Jan. 10, 2017, when Rep. Michael J. Zalewski (D-23) filed it with the House clerk.
According to the General Assembly website, the bill as introduced was designed to "amend the Local Government Wage Increase Transparency Act".
After debate, the House passed the bill on Feb. 22, 2017 and it arrived in the Senate on March 20, 2019, and both chambers agreed to the final version of the legislation on May 21, 2019. The bill was sent to the governor and signed into law on Aug. 9, 2019. The law went into effect immediately.
Illinois legislature enacts laws through bills that can be introduced in either the state House of Representatives or the state Senate. Either chamber of the legislature can reject or amend a bill before it becomes law. Legislators sometimes sponsor "shell bills" devoid of substantive provisions, introduced with the intention of being amended later to include actual legislation.
The following table shows the full history of actions on HB303.
| Date | Chamber | Action |
|---|---|---|
| 1/10/2017 | House | Prefiled with Clerk by Rep. Michael J. Zalewski |
| 1/11/2017 | House | First Reading |
| 1/11/2017 | House | Referred to Rules Committee |
| 1/25/2017 | House | Assigned to Transportation: Vehicles & Safety Committee |
| 2/9/2017 | House | Do Pass / Short Debate Transportation: Vehicles & Safety Committee; 009-000-000 |
| 2/9/2017 | House | Placed on Calendar 2nd Reading - Short Debate |
| 2/16/2017 | House | Second Reading - Short Debate |
| 2/16/2017 | House | Placed on Calendar Order of 3rd Reading - Short Debate |
| 2/22/2017 | House | Third Reading - Short Debate - Passed 099-007-000 |
| 2/22/2017 | House | Added Chief Co-Sponsor Rep. Mark Batinick |
| 2/22/2017 | House | Added Co-Sponsor Rep. La Shawn K. Ford |
| 2/22/2017 | House | Added Co-Sponsor Rep. Martin J. Moylan |
| 2/22/2017 | House | Added Co-Sponsor Rep. Frances Ann Hurley |
| 2/28/2017 | Senate | Arrive in Senate |
| 2/28/2017 | Senate | Placed on Calendar Order of First Reading March 1, 2017 |
| 3/1/2017 | Senate | Chief Senate Sponsor Sen. Michael E. Hastings |
| 3/1/2017 | Senate | First Reading |
| 3/1/2017 | Senate | Referred to Assignments |
| 5/24/2017 | Senate | Alternate Chief Sponsor Changed to Sen. Don Harmon |
| 5/25/2017 | Senate | Placed on Calendar Order of 2nd Reading May 26, 2017 |
| 5/25/2017 | Senate | Approved for Consideration Assignments |
| 5/26/2017 | Senate | Second Reading |
| 5/26/2017 | Senate | Added as Alternate Chief Co-Sponsor Sen. Patricia Van Pelt |
| 5/26/2017 | Senate | Added as Alternate Chief Co-Sponsor Sen. Chapin Rose |
| 5/26/2017 | Senate | Added as Alternate Chief Co-Sponsor Sen. Michael Connelly |
| 5/26/2017 | Senate | Placed on Calendar Order of 3rd Reading May 29, 2017 |
| 5/26/2017 | Senate | Rule 2-10 Third Reading Deadline Established As May 31, 2017 |
| 5/30/2017 | House | Added Co-Sponsor Rep. Tony McCombie |
| 5/30/2017 | Senate | Senate Floor Amendment No. 1 Referred to Assignments |
| 5/30/2017 | Senate | Senate Floor Amendment No. 1 Recommend Do Adopt Criminal Law; 009-000-000 |
| 5/30/2017 | Senate | Added as Alternate Co-Sponsor Sen. Tim Bivins |
| 5/30/2017 | Senate | Senate Floor Amendment No. 1 Assignments Refers to Criminal Law |
| 5/30/2017 | Senate | Senate Floor Amendment No. 1 Filed with Secretary by Sen. Don Harmon |
| 5/31/2017 | House | Added Chief Co-Sponsor Rep. William Davis |
| 5/31/2017 | House | Senate Floor Amendment No. 1 Motion to Concur Referred to Rules Committee |
| 5/31/2017 | House | Added Co-Sponsor Rep. Michael J. Zalewski |
| 5/31/2017 | House | Placed on Calendar Order of Concurrence Senate Amendment(s) 1 |
| 5/31/2017 | House | Added Chief Co-Sponsor Rep. Steven A. Andersson |
| 5/31/2017 | House | Added Co-Sponsor Rep. Theresa Mah |
| 5/31/2017 | House | Added Co-Sponsor Rep. Grant Wehrli |
| 5/31/2017 | House | Added Co-Sponsor Rep. Joe Sosnowski |
| 5/31/2017 | House | Added Co-Sponsor Rep. Peter Breen |
| 5/31/2017 | House | Added Co-Sponsor Rep. Brad Halbrook |
| 5/31/2017 | House | Added Co-Sponsor Rep. Emanuel Chris Welch |
| 5/31/2017 | House | Added Co-Sponsor Rep. Allen Skillicorn |
| 5/31/2017 | House | Added Co-Sponsor Rep. Jaime M. Andrade, Jr. |
| 5/31/2017 | House | Added Co-Sponsor Rep. Lou Lang |
| 5/31/2017 | House | Added Co-Sponsor Rep. Rita Mayfield |
| 5/31/2017 | House | Added Co-Sponsor Rep. Elizabeth Hernandez |
| 5/31/2017 | House | Added Co-Sponsor Rep. Carol Ammons |
| 5/31/2017 | House | Senate Floor Amendment No. 1 Motion Filed Concur Rep. Will Guzzardi |
| 5/31/2017 | House | Added Co-Sponsor Rep. Al Riley |
| 5/31/2017 | House | Remove Chief Co-Sponsor Rep. Mark Batinick |
| 5/31/2017 | House | Added Co-Sponsor Rep. Linda Chapa LaVia |
| 5/31/2017 | House | Added Co-Sponsor Rep. Mark Batinick |
| 5/31/2017 | House | Added Co-Sponsor Rep. Nick Sauer |
| 5/31/2017 | House | Added Co-Sponsor Rep. Patricia R. Bellock |
| 5/31/2017 | House | Added Co-Sponsor Rep. LaToya Greenwood |
| 5/31/2017 | House | Chief Sponsor Changed to Rep. Will Guzzardi |
| 5/31/2017 | House | Added Co-Sponsor Rep. Laura Fine |
| 5/31/2017 | House | Added Co-Sponsor Rep. Natalie A. Manley |
| 5/31/2017 | House | Added Co-Sponsor Rep. Jerry Lee Long |
| 5/31/2017 | House | Added Co-Sponsor Rep. Marcus C. Evans, Jr. |
| 5/31/2017 | House | Added Co-Sponsor Rep. Christian L. Mitchell |
| 5/31/2017 | House | Added Chief Co-Sponsor Rep. Tom Demmer |
| 5/31/2017 | House | Added Co-Sponsor Rep. Barbara Flynn Currie |
| 5/31/2017 | House | Arrived in House |
| 5/31/2017 | House | Added Co-Sponsor Rep. Jeanne M Ives |
| 5/31/2017 | House | Added Chief Co-Sponsor Rep. Elaine Nekritz |
| 5/31/2017 | House | Added Co-Sponsor Rep. Kelly M. Cassidy |
| 5/31/2017 | House | Added Co-Sponsor Rep. Robyn Gabel |
| 5/31/2017 | Senate | Added as Alternate Co-Sponsor Sen. Donne E. Trotter |
| 5/31/2017 | Senate | Added as Alternate Co-Sponsor Sen. Dan McConchie |
| 5/31/2017 | Senate | Third Reading - Passed; 056-000-000 |
| 5/31/2017 | Senate | Added as Alternate Co-Sponsor Sen. Steve Stadelman |
| 5/31/2017 | Senate | Senate Floor Amendment No. 1 Adopted; Harmon |
| 5/31/2017 | Senate | Recalled to Second Reading |
| 5/31/2017 | Senate | Placed on Calendar Order of 3rd Reading |
| 6/20/2017 | House | Senate Floor Amendment No. 1 Motion to Concur Rules Referred to Judiciary - Criminal Committee |
| 6/22/2017 | House | Senate Floor Amendment No. 1 Motion to Concur Recommends Be Adopted Judiciary - Criminal Committee; 008-000-000 |
| 6/22/2017 | House | Added Co-Sponsor Rep. Elgie R. Sims, Jr. |
| 6/23/2017 | House | Passed Both Houses |
| 6/23/2017 | House | Senate Floor Amendment No. 1 House Concurs 100-001-000 |
| 6/23/2017 | House | House Concurs |
| 7/21/2017 | House | Sent to the Governor |
| 9/19/2017 | House | Public Act . . . . . . . . . 100-0512 |
| 9/19/2017 | House | Governor Approved |
| 9/19/2017 | House | Effective Date July 1, 2018 |
| 1/10/2019 | House | First Reading |
| 1/10/2019 | House | Filed with the Clerk by Rep. David McSweeney |
| 1/10/2019 | House | Referred to Rules Committee |
| 2/1/2019 | House | Added Chief Co-Sponsor Rep. Jonathan Carroll |
| 2/5/2019 | House | Assigned to Personnel & Pensions Committee |
| 2/27/2019 | House | Added Chief Co-Sponsor Rep. Mark Batinick |
| 2/28/2019 | House | Placed on Calendar 2nd Reading - Short Debate |
| 2/28/2019 | House | Do Pass / Short Debate Personnel & Pensions Committee; 010-000-000 |
| 3/6/2019 | House | Second Reading - Short Debate |
| 3/6/2019 | House | Placed on Calendar Order of 3rd Reading - Short Debate |
| 3/19/2019 | House | Added Chief Co-Sponsor Rep. Allen Skillicorn |
| 3/20/2019 | House | Third Reading - Short Debate - Passed 115-000-000 |
| 3/20/2019 | Senate | Arrive in Senate |
| 3/20/2019 | Senate | Chief Senate Sponsor Sen. Thomas Cullerton |
| 3/20/2019 | Senate | First Reading |
| 3/20/2019 | Senate | Placed on Calendar Order of First Reading |
| 3/20/2019 | Senate | Referred to Assignments |
| 4/24/2019 | Senate | Assigned to Local Government |
| 5/1/2019 | Senate | Do Pass Local Government; 007-000-000 |
| 5/1/2019 | Senate | Placed on Calendar Order of 2nd Reading May 2, 2019 |
| 5/9/2019 | Senate | Second Reading |
| 5/9/2019 | Senate | Placed on Calendar Order of 3rd Reading May 14, 2019 |
| 5/21/2019 | House | Passed Both Houses |
| 5/21/2019 | Senate | Third Reading - Passed; 055-000-000 |
| 6/19/2019 | House | Sent to the Governor |
| 8/9/2019 | House | Effective Date August 9, 2019 |
| 8/9/2019 | House | Public Act . . . . . . . . . 101-0228 |
| 8/9/2019 | House | Governor Approved |
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