---
type: "Bill"
title: "SAFETY-TECH"
description: "Amends the Illinois Nuclear Facility Safety Act. Makes a technical change in a Section on legislative findings."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "99th"
identifier: "SB 550"
citation: "Illinois SB 550 (99th)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 139
vote_count: 5
first_action: "2015-01-28"
last_action: "2017-01-17"
source: "openstates"
source_identifier: "ocd-bill/05d7ef9f-5813-4915-aa49-1860b965ea0f"
source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=550&GAID=13&DocTypeID=SB&LegId=84513&SessionID=88&GA=99"
source_hash: "9676aa9e5283e211e10ed3bc5b218d8fce3fc9852833b42ba673d32699ff509f"
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 SB 550 (99th) — SAFETY-TECH

Amends the Illinois Nuclear Facility Safety Act. Makes a technical change in a Section on legislative findings.

## 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=09900SB0550&GA=99&SessionId=88&DocTypeId=SB&LegID=84513&DocNum=550&GAID=13&Session=&print=true)
2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=09900SB0550eng&GA=99&SessionId=88&DocTypeId=SB&LegID=84513&DocNum=550&GAID=13&Session=&print=true)
3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=09900SB0550enr&GA=99&SessionId=88&DocTypeId=SB&LegID=84513&DocNum=550&GAID=13&Session=&print=true)

## Votes

- Third Reading — **48–5** (pass) · upper
- Concurrence, Amendment 3 — **55–0** (pass) · upper
- Concurrence, Amendment 4 — **55–0** (pass) · upper
- Concurrence — **55–0** (pass) · upper
- Third Reading — **108–1** (pass) · lower

## Sponsors

- Ann M. Williams — cosponsor (person)
- Camille Y. Lilly — cosponsor (person)
- Carol Ammons — cosponsor (person)
- Carol Sente — cosponsor (person)
- Cynthia Soto — cosponsor (person)
- Deb Conroy — cosponsor (person)
- Eddie Lee Jackson, Sr. — cosponsor (person)
- Elgie R. Sims, Jr. — cosponsor (person)
- Emanuel Chris Welch — cosponsor (person)
- Emily McAsey — cosponsor (person)
- Heather A. Steans — primary (person)
- Jack D. Franks — cosponsor (person)
- Katherine Cloonen — cosponsor (person)
- Kathleen Willis — cosponsor (person)
- La Shawn K. Ford — cosponsor (person)
- Laura Fine — cosponsor (person)
- Linda Chapa LaVia — cosponsor (person)
- Marcus C. Evans, Jr. — cosponsor (person)
- Melissa Conyears — cosponsor (person)
- Michelle Mussman — cosponsor (person)
- Monique D. Davis — cosponsor (person)
- Rita Mayfield — cosponsor (person)
- Robyn Gabel — cosponsor (person)
- Stephanie A. Kifowit — cosponsor (person)
- Sue Scherer — cosponsor (person)
- Will Guzzardi — cosponsor (person)
- William Davis — cosponsor (person)

## Timeline

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

- **2015-01-28** Filed with Secretary by Sen. John J. Cullerton `filing`
- **2015-01-28** First Reading `reading-1`
- **2015-01-28** Referred to Assignments `referral-committee`
- **2015-03-18** Assigned to Executive `referral-committee`
- **2015-03-26** Do Pass Executive; 016-000-000 `committee-passage`
- **2015-03-26** Placed on Calendar Order of 2nd Reading April 14, 2015
- **2015-04-15** Second Reading `reading-2`
- **2015-04-15** Placed on Calendar Order of 3rd Reading April 16, 2015
- **2015-04-21** Re-referred to Assignments `referral-committee`
- **2016-04-06** Approved for Consideration Assignments
- **2016-04-06** Placed on Calendar Order of 3rd Reading April 7, 2016
- **2016-04-06** Chief Sponsor Changed to Sen. Heather A. Steans
- **2016-04-15** Senate Floor Amendment No. 1 Filed with Secretary by Sen. Heather A. Steans `amendment-introduction`
- **2016-04-15** Senate Floor Amendment No. 1 Referred to Assignments `referral-committee`
- **2016-04-19** Senate Floor Amendment No. 1 Assignments Refers to Environment and Conservation
- **2016-04-20** Senate Floor Amendment No. 1 Postponed - Environment and Conservation
- **2016-04-22** Rule 2-10 Committee/3rd Reading Deadline Established As May 13, 2016
- **2016-04-27** Added as Co-Sponsor Sen. Michael Noland
- **2016-05-05** Added as Chief Co-Sponsor Sen. Jacqueline Y. Collins
- **2016-05-09** Added as Chief Co-Sponsor Sen. Donne E. Trotter
- **2016-05-13** Rule 2-10 Committee/3rd Reading Deadline Established As May 27, 2016
- **2016-05-16** Added as Chief Co-Sponsor Sen. Patricia Van Pelt
- **2016-05-20** Senate Floor Amendment No. 2 Filed with Secretary by Sen. Heather A. Steans `amendment-introduction`
- **2016-05-20** Senate Floor Amendment No. 2 Referred to Assignments `referral-committee`
- **2016-05-23** Added as Chief Co-Sponsor Sen. Ira I. Silverstein
- **2016-05-24** Added as Co-Sponsor Sen. Linda Holmes
- **2016-05-24** Added as Co-Sponsor Sen. Daniel Biss
- **2016-05-24** Senate Floor Amendment No. 2 Assignments Refers to Environment and Conservation
- **2016-05-24** Added as Co-Sponsor Sen. Bill Cunningham
- **2016-05-25** Senate Floor Amendment No. 2 Recommend Do Adopt Environment and Conservation; 009-003-000
- **2016-05-27** Rule 2-10 Committee/3rd Reading Deadline Established As May 31, 2016
- **2016-05-29** Senate Floor Amendment No. 3 Filed with Secretary by Sen. Heather A. Steans `amendment-introduction`
- **2016-05-29** Senate Floor Amendment No. 3 Referred to Assignments `referral-committee`
- **2016-05-30** Senate Floor Amendment No. 3 Assignments Refers to Public Health
- **2016-05-30** Added as Co-Sponsor Sen. Napoleon Harris, III
- **2016-05-31** Senate Floor Amendment No. 3 Recommend Do Adopt Public Health; 006-000-002
- **2016-05-31** Added as Co-Sponsor Sen. Mattie Hunter
- **2016-05-31** Recalled to Second Reading `reading-2`
- **2016-05-31** Senate Floor Amendment No. 2 Withdrawn by Sen. Heather A. Steans
- **2016-05-31** Senate Floor Amendment No. 3 Adopted; Steans `amendment-passage`
- **2016-05-31** Placed on Calendar Order of 3rd Reading
- **2016-05-31** Third Reading - Passed; 048-005-000 `reading-3, passage`
- **2016-05-31** Senate Floor Amendment No. 1 Tabled Pursuant to Rule 5-4(a) `amendment-failure`
- **2016-05-31** Arrived in House `introduction`
- **2016-05-31** Chief House Sponsor Rep. Sonya M. Harper
- **2016-06-23** Added Alternate Co-Sponsor Rep. Ann M. Williams
- **2016-06-29** First Reading `reading-1`
- **2016-06-29** Referred to Rules Committee `referral-committee`
- **2016-10-26** Added Alternate Chief Co-Sponsor Rep. Robyn Gabel
- **2016-11-16** Added Alternate Co-Sponsor Rep. Mary E. Flowers
- **2016-11-16** Added Alternate Co-Sponsor Rep. Emanuel Chris Welch
- **2016-11-16** Added Alternate Co-Sponsor Rep. Will Guzzardi
- **2016-11-21** Added Alternate Co-Sponsor Rep. Laura Fine
- **2016-11-22** Assigned to Environment `referral-committee`
- **2016-11-28** House Committee Amendment No. 1 Filed with Clerk by Rep. Sonya M. Harper `amendment-introduction`
- **2016-11-28** House Committee Amendment No. 1 Referred to Rules Committee `referral-committee`
- **2016-11-29** House Committee Amendment No. 1 Rules Refers to Environment
- **2016-11-29** Added Alternate Chief Co-Sponsor Rep. Jehan Gordon-Booth
- **2016-11-29** Added Alternate Chief Co-Sponsor Rep. Carol Ammons
- **2016-11-29** Added Alternate Chief Co-Sponsor Rep. Mary E. Flowers
- **2016-11-29** Alternate Co-Sponsor Removed Rep. Mary E. Flowers
- **2016-11-29** Added Alternate Co-Sponsor Rep. Rita Mayfield
- **2016-11-29** Added Alternate Co-Sponsor Rep. Monique D. Davis
- **2016-11-29** Added Alternate Co-Sponsor Rep. Emily McAsey
- **2016-11-29** Added Alternate Co-Sponsor Rep. Litesa E. Wallace
- **2016-11-29** House Committee Amendment No. 2 Filed with Clerk by Rep. Sonya M. Harper `amendment-introduction`
- **2016-11-29** House Committee Amendment No. 2 Referred to Rules Committee `referral-committee`
- **2016-11-30** House Committee Amendment No. 2 Rules Refers to Environment
- **2016-11-30** Added Alternate Co-Sponsor Rep. Camille Y. Lilly
- **2016-11-30** Added Alternate Co-Sponsor Rep. Jack D. Franks
- **2016-11-30** House Committee Amendment No. 2 Adopted in Environment; by Voice Vote `amendment-passage`
- **2016-11-30** Do Pass as Amended / Short Debate Environment; 017-000-000 `committee-passage`
- **2016-11-30** House Committee Amendment No. 1 Tabled Pursuant to Rule 40 `amendment-failure`
- **2016-11-30** Placed on Calendar 2nd Reading - Short Debate
- **2016-11-30** Second Reading - Short Debate `reading-2`
- **2016-11-30** Held on Calendar Order of Second Reading - Short Debate `reading-2`
- **2016-12-01** Alternate Chief Co-Sponsor Removed Rep. Carol Ammons
- **2016-12-01** Added Alternate Chief Co-Sponsor Rep. Litesa E. Wallace
- **2016-12-01** Alternate Co-Sponsor Removed Rep. Litesa E. Wallace
- **2016-12-01** Added Alternate Co-Sponsor Rep. Carol Ammons
- **2017-01-03** Rule 19(b) / Re-referred to Rules Committee `referral-committee`
- **2017-01-06** Added Alternate Co-Sponsor Rep. Elizabeth Hernandez
- **2017-01-06** Added Alternate Co-Sponsor Rep. Linda Chapa LaVia
- **2017-01-09** Approved for Consideration Rules Committee; 004-000-000
- **2017-01-09** Placed on Calendar 2nd Reading - Short Debate
- **2017-01-09** House Floor Amendment No. 3 Filed with Clerk by Rep. Sonya M. Harper `amendment-introduction`
- **2017-01-09** House Floor Amendment No. 3 Referred to Rules Committee `referral-committee`
- **2017-01-09** House Floor Amendment No. 3 Rules Refers to Environment
- **2017-01-09** Alternate Chief Co-Sponsor Removed Rep. Robyn Gabel
- **2017-01-09** Added Alternate Chief Co-Sponsor Rep. Elizabeth Hernandez
- **2017-01-09** Alternate Co-Sponsor Removed Rep. Elizabeth Hernandez
- **2017-01-09** Added Alternate Co-Sponsor Rep. Robyn Gabel
- **2017-01-09** House Floor Amendment No. 3 Recommends Be Adopted Environment; 015-000-000 `committee-passage-favorable`
- **2017-01-09** House Floor Amendment No. 4 Filed with Clerk by Rep. Sonya M. Harper `amendment-introduction`
- **2017-01-09** House Floor Amendment No. 4 Referred to Rules Committee `referral-committee`
- **2017-01-09** Added Alternate Co-Sponsor Rep. Carol Sente
- **2017-01-09** Added Alternate Co-Sponsor Rep. Katherine Cloonen
- **2017-01-09** Added Alternate Co-Sponsor Rep. Eddie Lee Jackson, Sr.
- **2017-01-09** Added Alternate Co-Sponsor Rep. Michelle Mussman
- **2017-01-09** Added Alternate Co-Sponsor Rep. Sue Scherer
- **2017-01-09** Added Alternate Co-Sponsor Rep. Cynthia Soto
- **2017-01-09** Added Alternate Co-Sponsor Rep. La Shawn K. Ford
- **2017-01-09** Added Alternate Co-Sponsor Rep. Kathleen Willis
- **2017-01-09** House Floor Amendment No. 4 Recommends Be Adopted Rules Committee; 004-000-000 `committee-passage-favorable`
- **2017-01-09** House Floor Amendment No. 3 Adopted `amendment-passage`
- **2017-01-09** House Floor Amendment No. 4 Adopted `amendment-passage`
- **2017-01-09** Placed on Calendar Order of 3rd Reading - Short Debate
- **2017-01-09** Added Alternate Co-Sponsor Rep. William Davis
- **2017-01-09** Added Alternate Co-Sponsor Rep. Marcus C. Evans, Jr.
- **2017-01-09** Added Alternate Co-Sponsor Rep. Elgie R. Sims, Jr.
- **2017-01-09** Added Alternate Co-Sponsor Rep. Melissa Conyears
- **2017-01-09** Third Reading - Short Debate - Passed 108-001-001 `reading-3, passage`
- **2017-01-09** Added Alternate Co-Sponsor Rep. Stephanie A. Kifowit
- **2017-01-09** Added Alternate Co-Sponsor Rep. Deb Conroy
- **2017-01-10** Secretary's Desk - Concurrence House Amendment(s) 2, 3, 4
- **2017-01-10** Placed on Calendar Order of Concurrence House Amendment(s) 2, 3, 4 - January 10, 2017
- **2017-01-10** House Committee Amendment No. 2 Motion to Concur Filed with Secretary Sen. Heather A. Steans `filing`
- **2017-01-10** House Committee Amendment No. 2 Motion to Concur Referred to Assignments `referral-committee`
- **2017-01-10** House Floor Amendment No. 3 Motion to Concur Filed with Secretary Sen. Heather A. Steans `filing`
- **2017-01-10** House Floor Amendment No. 3 Motion to Concur Referred to Assignments `referral-committee`
- **2017-01-10** House Floor Amendment No. 4 Motion to Concur Filed with Secretary Sen. Heather A. Steans `filing`
- **2017-01-10** House Floor Amendment No. 4 Motion to Concur Referred to Assignments `referral-committee`
- **2017-01-10** House Committee Amendment No. 2 Motion to Concur Be Approved for Consideration Assignments
- **2017-01-10** House Floor Amendment No. 3 Motion to Concur Be Approved for Consideration Assignments
- **2017-01-10** House Floor Amendment No. 4 Motion to Concur Be Approved for Consideration Assignments
- **2017-01-10** 3/5 Vote Required
- **2017-01-10** House Committee Amendment No. 2 Senate Concurs 055-000-000
- **2017-01-10** House Floor Amendment No. 3 Senate Concurs 055-000-000
- **2017-01-10** House Floor Amendment No. 4 Senate Concurs 055-000-000
- **2017-01-10** Added as Co-Sponsor Sen. Toi W. Hutchinson
- **2017-01-10** Added as Co-Sponsor Sen. Michael E. Hastings
- **2017-01-10** Added as Co-Sponsor Sen. Thomas Cullerton
- **2017-01-10** Added as Co-Sponsor Sen. Steven M. Landek
- **2017-01-10** Senate Concurs
- **2017-01-10** Passed Both Houses
- **2017-01-11** Sent to the Governor `executive-receipt`
- **2017-01-17** Governor Approved `executive-signature`
- **2017-01-17** Effective Date January 17, 2017
- **2017-01-17** Public Act . . . . . . . . . 99-0922 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/05d7ef9f-5813-4915-aa49-1860b965ea0f`. Confidence: reported (aggregated from official Illinois legislature records).