---
type: "Bill"
title: "LIENS-AMBULATORY SURGICAL CTRS"
description: "Amends the Health Care Services Lien Act. Adds to the definition of \"health care provider\" ambulatory surgical treatment facilities accredited by one of the following organizations: the American Association for the Accreditation of Ambulatory Surgical Facilities; the Joint Commission (formerly the Joint Commission on Accreditation of Healthcare Organizations); the Healthcare Facilities Accreditation Program; or the Accreditation Association for Ambulatory Health Care. Provides that the amendatory changes apply to causes of action accruing on or after the effective date."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "100th"
identifier: "HB 4911"
citation: "Illinois HB 4911 (100th)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 29
vote_count: 2
first_action: "2018-02-14"
last_action: "2018-07-31"
source: "openstates"
source_identifier: "ocd-bill/dc69a401-994c-494d-8009-69cb7346527b"
source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=4911&GAID=14&DocTypeID=HB&LegId=110325&SessionID=91&GA=100"
source_hash: "b9d9ca259061879920f68d36beec95779162e944e9626cc1a99dcb9f5cf1cb5d"
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 4911 (100th) — LIENS-AMBULATORY SURGICAL CTRS

Amends the Health Care Services Lien Act. Adds to the definition of "health care provider" ambulatory surgical treatment facilities accredited by one of the following organizations: the American Association for the Accreditation of Ambulatory Surgical Facilities; the Joint Commission (formerly the Joint Commission on Accreditation of Healthcare Organizations); the Healthcare Facilities Accreditation Program; or the Accreditation Association for Ambulatory Health Care. Provides that the amendatory changes apply to causes of action accruing on or after the effective date.

## 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=10000HB4911&GA=100&SessionId=91&DocTypeId=HB&LegID=110325&DocNum=4911&GAID=14&Session=&print=true)
2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB4911eng&GA=100&SessionId=91&DocTypeId=HB&LegID=110325&DocNum=4911&GAID=14&Session=&print=true)
3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB4911enr&GA=100&SessionId=91&DocTypeId=HB&LegID=110325&DocNum=4911&GAID=14&Session=&print=true)

## Votes

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

## Sponsors

- André Thapedi — primary (person)
- Omar Aquino — cosponsor (person)

## Timeline

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

- **2018-02-14** Filed with the Clerk by Rep. André Thapedi `filing`
- **2018-02-14** First Reading `reading-1`
- **2018-02-14** Referred to Rules Committee `referral-committee`
- **2018-03-21** Assigned to Judiciary - Civil Committee `referral-committee`
- **2018-03-23** To Civil Procedure Subcommittee
- **2018-04-10** Recommends Do Pass Subcommittee/ Judiciary - Civil Committee; 003-000-000 `committee-passage`
- **2018-04-10** Reported Back To Judiciary - Civil Committee;
- **2018-04-10** Do Pass / Short Debate Judiciary - Civil Committee; 011-000-000 `committee-passage`
- **2018-04-10** Placed on Calendar 2nd Reading - Short Debate
- **2018-04-17** Second Reading - Short Debate `reading-2`
- **2018-04-17** Placed on Calendar Order of 3rd Reading - Short Debate
- **2018-04-19** Third Reading - Short Debate - Passed 112-000-000 `reading-3, passage`
- **2018-04-23** Arrive in Senate `introduction`
- **2018-04-23** Placed on Calendar Order of First Reading April 24, 2018 `reading-1`
- **2018-05-01** Chief Senate Sponsor Sen. Chuck Weaver
- **2018-05-01** First Reading `reading-1`
- **2018-05-01** Referred to Assignments `referral-committee`
- **2018-05-02** Assigned to Judiciary `referral-committee`
- **2018-05-02** Added as Alternate Co-Sponsor Sen. Omar Aquino
- **2018-05-09** Do Pass Judiciary; 009-000-000 `committee-passage`
- **2018-05-09** Placed on Calendar Order of 2nd Reading May 10, 2018
- **2018-05-16** Second Reading `reading-2`
- **2018-05-16** Placed on Calendar Order of 3rd Reading May 17, 2018
- **2018-05-17** Third Reading - Passed; 054-000-000 `reading-3, passage`
- **2018-05-17** Passed Both Houses
- **2018-06-15** Sent to the Governor `executive-receipt`
- **2018-07-31** Governor Approved `executive-signature`
- **2018-07-31** Effective Date January 1, 2019
- **2018-07-31** Public Act . . . . . . . . . 100-0653 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/dc69a401-994c-494d-8009-69cb7346527b`. Confidence: reported (aggregated from official Illinois legislature records).