---
type: "Bill"
title: "ILLINOIS CONSTITUTION DAY"
description: "Amends the State Commemorative Dates Act. Provides that August 26th of each year is designated as Illinois Constitution Day, to be observed throughout the State as a day to commemorate August 26, 1818 as the day Illinois ratified its first State Constitution."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "100th"
identifier: "HB 434"
citation: "Illinois HB 434 (100th)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 61
vote_count: 3
first_action: "2017-01-13"
last_action: "2017-09-08"
source: "openstates"
source_identifier: "ocd-bill/380b0414-e1d1-479b-8961-29d2a7581ea0"
source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=434&GAID=14&DocTypeID=HB&LegId=99929&SessionID=91&GA=100"
source_hash: "1231709fffcefa2e01c5dac815782e20e944fcf005597de00cbcdbabcc8096e3"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-il"]
---

# Illinois HB 434 (100th) — ILLINOIS CONSTITUTION DAY

Amends the State Commemorative Dates Act. Provides that August 26th of each year is designated as Illinois Constitution Day, to be observed throughout the State as a day to commemorate August 26, 1818 as the day Illinois ratified its first State Constitution.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB0434&GA=100&SessionId=91&DocTypeId=HB&LegID=99929&DocNum=434&GAID=14&Session=&print=true)
2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB0434eng&GA=100&SessionId=91&DocTypeId=HB&LegID=99929&DocNum=434&GAID=14&Session=&print=true)
3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB0434enr&GA=100&SessionId=91&DocTypeId=HB&LegID=99929&DocNum=434&GAID=14&Session=&print=true)

## Votes

- Concurrence, Amendment 2 — **74–23** (pass) · lower
- Third Reading — **50–3** (pass) · upper
- Third Reading — **112–0** (pass) · lower

## Sponsors

- Tim Butler — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2017-01-13** Filed with the Clerk by Rep. Tim Butler `filing`
- **2017-01-17** First Reading `reading-1`
- **2017-01-17** Referred to Rules Committee `referral-committee`
- **2017-01-18** Added Chief Co-Sponsor Rep. David S. Olsen
- **2017-01-24** Added Co-Sponsor Rep. Steven A. Andersson
- **2017-01-27** Added Chief Co-Sponsor Rep. Avery Bourne
- **2017-02-01** Added Chief Co-Sponsor Rep. Nick Sauer
- **2017-02-02** Assigned to State Government Administration Committee `referral-committee`
- **2017-02-08** Do Pass / Short Debate State Government Administration Committee; 007-000-000 `committee-passage`
- **2017-02-08** Placed on Calendar 2nd Reading - Short Debate
- **2017-02-09** Added Co-Sponsor Rep. Margo McDermed
- **2017-02-09** Added Co-Sponsor Rep. Christian L. Mitchell
- **2017-02-09** Second Reading - Short Debate `reading-2`
- **2017-02-09** Placed on Calendar Order of 3rd Reading - Short Debate
- **2017-02-16** Third Reading - Short Debate - Passed 112-000-000 `reading-3, passage`
- **2017-02-16** Added Co-Sponsor Rep. Patricia R. Bellock
- **2017-02-16** Arrive in Senate `introduction`
- **2017-02-16** Placed on Calendar Order of First Reading `reading-1`
- **2017-02-16** Chief Senate Sponsor Sen. Pamela J. Althoff
- **2017-02-22** First Reading `reading-1`
- **2017-02-22** Referred to Assignments `referral-committee`
- **2017-04-25** Assigned to State Government `referral-committee`
- **2017-05-12** Rule 2-10 Committee Deadline Established As May 19, 2017
- **2017-05-19** Rule 3-9(a) / Re-referred to Assignments `referral-committee`
- **2017-05-26** Re-assigned to Executive `referral-committee`
- **2017-05-26** Rule 2-10 Committee Deadline Established As May 31, 2017
- **2017-05-26** Senate Committee Amendment No. 1 Filed with Secretary by Sen. Pamela J. Althoff `amendment-introduction`
- **2017-05-26** Senate Committee Amendment No. 1 Referred to Assignments `referral-committee`
- **2017-05-26** Waive Posting Notice
- **2017-05-29** Do Pass Executive; 016-000-000 `committee-passage`
- **2017-05-29** Placed on Calendar Order of 2nd Reading
- **2017-05-29** Second Reading `reading-2`
- **2017-05-29** Placed on Calendar Order of 3rd Reading May 30, 2017
- **2017-05-29** Senate Floor Amendment No. 2 Filed with Secretary by Sen. Pamela J. Althoff `amendment-introduction`
- **2017-05-29** Senate Floor Amendment No. 2 Referred to Assignments `referral-committee`
- **2017-05-29** Senate Floor Amendment No. 2 Be Approved for Consideration Assignments
- **2017-05-31** Rule 2-10 Third Reading Deadline Established As May 31, 2017 `reading-3`
- **2017-05-31** Recalled to Second Reading `reading-2`
- **2017-05-31** Senate Floor Amendment No. 2 Adopted; Althoff `amendment-passage`
- **2017-05-31** Placed on Calendar Order of 3rd Reading
- **2017-05-31** Third Reading - Passed; 050-003-000 `reading-3, passage`
- **2017-05-31** Senate Committee Amendment No. 1 Tabled Pursuant to Rule 5-4(a) `amendment-failure`
- **2017-05-31** Arrived in House `introduction`
- **2017-05-31** Placed on Calendar Order of Concurrence Senate Amendment(s) 2
- **2017-05-31** Senate Floor Amendment No. 2 Motion Filed Concur Rep. Tim Butler
- **2017-05-31** Senate Floor Amendment No. 2 Motion to Concur Referred to Rules Committee `referral-committee`
- **2017-06-20** Senate Floor Amendment No. 2 Motion to Concur Rules Referred to Transportation: Vehicles & Safety Committee `referral-committee`
- **2017-06-22** Remove Chief Co-Sponsor Rep. Nick Sauer
- **2017-06-22** Remove Chief Co-Sponsor Rep. Avery Bourne
- **2017-06-22** Remove Chief Co-Sponsor Rep. David S. Olsen
- **2017-06-22** Removed Co-Sponsor Rep. Steven A. Andersson
- **2017-06-22** Removed Co-Sponsor Rep. Margo McDermed
- **2017-06-22** Removed Co-Sponsor Rep. Patricia R. Bellock
- **2017-06-23** Senate Floor Amendment No. 2 Motion to Concur Recommends Be Adopted Transportation: Vehicles & Safety Committee; 007-000-000
- **2017-06-24** Senate Floor Amendment No. 2 House Concurs 074-023-000
- **2017-06-24** House Concurs
- **2017-06-24** Passed Both Houses
- **2017-07-21** Sent to the Governor `executive-receipt`
- **2017-09-08** Governor Approved `executive-signature`
- **2017-09-08** Effective Date June 1, 2018
- **2017-09-08** Public Act . . . . . . . . . 100-0469 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/380b0414-e1d1-479b-8961-29d2a7581ea0`. Confidence: reported (aggregated from official Illinois legislature records).