---
type: "Bill"
title: "MH/DD-INTELLECTUAL DISABILITY"
description: "Amends the Mental Health and Developmental Disabilities Code. Makes a technical change in a Section concerning the definition of \"mental retardation\"."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "97th"
identifier: "SB 1833"
citation: "Illinois SB 1833 (97th)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 43
vote_count: 2
first_action: "2011-02-09"
last_action: "2011-07-28"
source: "openstates"
source_identifier: "ocd-bill/338d9ab6-4e48-49bc-aa33-a289657d80ee"
source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=1833&GAID=11&DocTypeID=SB&LegId=57905&SessionID=84&GA=97"
source_hash: "12e5829bf644724eb93c1faf3fb5019045c6a85bf452fd481b2cd3d78eee8986"
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 1833 (97th) — MH/DD-INTELLECTUAL DISABILITY

Amends the Mental Health and Developmental Disabilities Code. Makes a technical change in a Section concerning the definition of "mental retardation".

## 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=09700SB1833&GA=97&SessionId=84&DocTypeId=SB&LegID=57905&DocNum=1833&GAID=11&Session=&print=true)
2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=09700SB1833eng&GA=97&SessionId=84&DocTypeId=SB&LegID=57905&DocNum=1833&GAID=11&Session=&print=true)
3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=09700SB1833enr&GA=97&SessionId=84&DocTypeId=SB&LegID=57905&DocNum=1833&GAID=11&Session=&print=true)

## Votes

- Third Reading — **112–0** (pass) · lower
- Third Reading — **54–0** (pass) · upper

## Sponsors

- Frank J. Mautino — cosponsor (person)
- JoAnn D. Osmond — cosponsor (person)
- Karen A. Yarbrough — cosponsor (person)
- Matt Murphy — primary (person)
- Patricia R. Bellock — cosponsor (person)
- Rosemary Mulligan — cosponsor (person)
- Sandra M. Pihos — cosponsor (person)
- Sandy Cole — cosponsor (person)
- Sidney H. Mathias — cosponsor (person)

## Timeline

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

- **2011-02-09** Filed with Secretary by Sen. Matt Murphy `filing`
- **2011-02-09** First Reading `reading-1`
- **2011-02-09** Referred to Assignments `referral-committee`
- **2011-03-09** Assigned to Human Services `referral-committee`
- **2011-03-10** Senate Committee Amendment No. 1 Filed with Secretary by Sen. Matt Murphy `amendment-introduction`
- **2011-03-10** Senate Committee Amendment No. 1 Referred to Assignments `referral-committee`
- **2011-03-14** Senate Committee Amendment No. 1 Assignments Refers to Human Services
- **2011-03-15** Senate Committee Amendment No. 1 Adopted `amendment-passage`
- **2011-03-15** Do Pass as Amended Human Services; 009-000-000 `committee-passage`
- **2011-03-15** Placed on Calendar Order of 2nd Reading March 16, 2011
- **2011-03-16** Added as Chief Co-Sponsor Sen. Pamela J. Althoff
- **2011-04-08** Second Reading `reading-2`
- **2011-04-08** Placed on Calendar Order of 3rd Reading April 11, 2011
- **2011-04-14** Added as Co-Sponsor Sen. Kirk W. Dillard
- **2011-04-14** Third Reading - Passed; 054-000-000 `reading-3, passage`
- **2011-04-14** Arrived in House `introduction`
- **2011-04-14** Placed on Calendar Order of First Reading `reading-1`
- **2011-04-14** Chief House Sponsor Rep. Emily McAsey
- **2011-04-14** First Reading `reading-1`
- **2011-04-14** Referred to Rules Committee `referral-committee`
- **2011-04-15** Added Alternate Chief Co-Sponsor Rep. Carol A. Sente
- **2011-04-15** Added Alternate Chief Co-Sponsor Rep. Fred Crespo
- **2011-04-15** Added Alternate Chief Co-Sponsor Rep. Robyn Gabel
- **2011-04-21** Assigned to Human Services Committee `referral-committee`
- **2011-04-27** Do Pass / Short Debate Human Services Committee; 010-000-000 `committee-passage`
- **2011-04-27** Placed on Calendar 2nd Reading - Short Debate
- **2011-05-03** Added Alternate Chief Co-Sponsor Rep. Naomi D. Jakobsson
- **2011-05-03** Added Alternate Co-Sponsor Rep. JoAnn D. Osmond
- **2011-05-03** Added Alternate Co-Sponsor Rep. Patricia R. Bellock
- **2011-05-03** Second Reading - Short Debate `reading-2`
- **2011-05-03** Placed on Calendar Order of 3rd Reading - Short Debate
- **2011-05-06** Third Reading - Short Debate - Passed 112-000-000 `reading-3, passage`
- **2011-05-06** Passed Both Houses
- **2011-05-06** Added Alternate Co-Sponsor Rep. Sidney H. Mathias
- **2011-05-06** Added Alternate Co-Sponsor Rep. Frank J. Mautino
- **2011-05-06** Added Alternate Co-Sponsor Rep. Karen A. Yarbrough
- **2011-05-06** Added Alternate Co-Sponsor Rep. Sandra M. Pihos
- **2011-05-06** Added Alternate Co-Sponsor Rep. Rosemary Mulligan
- **2011-05-06** Added Alternate Co-Sponsor Rep. Sandy Cole
- **2011-06-03** Sent to the Governor `executive-receipt`
- **2011-07-28** Governor Approved `executive-signature`
- **2011-07-28** Effective Date January 1, 2012
- **2011-07-28** Public Act . . . . . . . . . 97-0227 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/338d9ab6-4e48-49bc-aa33-a289657d80ee`. Confidence: reported (aggregated from official Illinois legislature records).