---
type: "Bill"
title: "PROP TX-WIND FARMS"
description: "Amends the Property Tax Code. Provides that a Division of the Code concerning the assessment of wind energy devices applies through assessment year 2021 (instead of 2016). Effective immediately."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "99th"
identifier: "SB 2612"
citation: "Illinois SB 2612 (99th)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 44
vote_count: 2
first_action: "2016-02-16"
last_action: "2016-08-16"
source: "openstates"
source_identifier: "ocd-bill/2235c98d-d0ee-471b-871e-9c26080a3ecb"
source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=2612&GAID=13&DocTypeID=SB&LegId=95905&SessionID=88&GA=99"
source_hash: "a593e808e79be379c87b9c8394ea14f0ab60313a0856e9ed20e9c07a4e48f22b"
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 2612 (99th) — PROP TX-WIND FARMS

Amends the Property Tax Code. Provides that a Division of the Code concerning the assessment of wind energy devices applies through assessment year 2021 (instead of 2016). Effective immediately.

## 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=09900SB2612&GA=99&SessionId=88&DocTypeId=SB&LegID=95905&DocNum=2612&GAID=13&Session=&print=true)
2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=09900SB2612eng&GA=99&SessionId=88&DocTypeId=SB&LegID=95905&DocNum=2612&GAID=13&Session=&print=true)
3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=09900SB2612enr&GA=99&SessionId=88&DocTypeId=SB&LegID=95905&DocNum=2612&GAID=13&Session=&print=true)

## Votes

- Third Reading — **50–0** (pass) · upper
- Third Reading — **111–0** (pass) · lower

## Sponsors

- Al Riley — cosponsor (person)
- Brian W. Stewart — cosponsor (person)
- Camille Y. Lilly — cosponsor (person)
- David Koehler — primary (person)
- Elaine Nekritz — cosponsor (person)
- Jack D. Franks — cosponsor (person)
- Linda Chapa LaVia — cosponsor (person)
- Marcus C. Evans, Jr. — cosponsor (person)
- Michael J. Zalewski — cosponsor (person)
- Patricia R. Bellock — cosponsor (person)
- Robert Martwick — cosponsor (person)
- Stephanie A. Kifowit — cosponsor (person)
- Will Guzzardi — cosponsor (person)

## Timeline

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

- **2016-02-16** Filed with Secretary by Sen. David Koehler `filing`
- **2016-02-16** First Reading `reading-1`
- **2016-02-16** Referred to Assignments `referral-committee`
- **2016-02-24** Assigned to Revenue `referral-committee`
- **2016-03-08** Added as Chief Co-Sponsor Sen. Pamela J. Althoff
- **2016-03-10** Do Pass Revenue; 009-000-000 `committee-passage`
- **2016-03-10** Placed on Calendar Order of 2nd Reading March 16, 2016
- **2016-03-16** Second Reading `reading-2`
- **2016-03-16** Placed on Calendar Order of 3rd Reading March 17, 2016
- **2016-04-06** Third Reading - Passed; 050-000-000 `reading-3, passage`
- **2016-04-06** Arrived in House `introduction`
- **2016-04-06** Chief House Sponsor Rep. Tom Demmer
- **2016-04-06** First Reading `reading-1`
- **2016-04-06** Referred to Rules Committee `referral-committee`
- **2016-04-18** Assigned to Revenue & Finance Committee `referral-committee`
- **2016-04-20** Added Alternate Chief Co-Sponsor Rep. Andrew F Skoog
- **2016-04-20** Added Alternate Chief Co-Sponsor Rep. Mike Smiddy
- **2016-04-20** Added Alternate Chief Co-Sponsor Rep. John D. Anthony
- **2016-04-21** Added Alternate Chief Co-Sponsor Rep. Carol Ammons
- **2016-04-27** To Property Tax Subcommittee
- **2016-05-04** Added Alternate Co-Sponsor Rep. Robert Martwick
- **2016-05-04** Added Alternate Co-Sponsor Rep. Will Guzzardi
- **2016-05-04** Added Alternate Co-Sponsor Rep. Marcus C. Evans, Jr.
- **2016-05-04** Added Alternate Co-Sponsor Rep. Michael J. Zalewski
- **2016-05-12** Recommends Do Pass Subcommittee/ Revenue & Finance Committee; 005-000-000 `committee-passage`
- **2016-05-12** Remains in Revenue & Finance Committee
- **2016-05-12** Do Pass / Short Debate Revenue & Finance Committee; 012-000-000 `committee-passage`
- **2016-05-12** Placed on Calendar 2nd Reading - Short Debate
- **2016-05-12** Added Alternate Co-Sponsor Rep. Elaine Nekritz
- **2016-05-12** Added Alternate Co-Sponsor Rep. Stephanie A. Kifowit
- **2016-05-17** Second Reading - Short Debate `reading-2`
- **2016-05-17** Placed on Calendar Order of 3rd Reading - Short Debate
- **2016-05-17** Added Alternate Co-Sponsor Rep. Al Riley
- **2016-05-26** Third Reading - Short Debate - Passed 111-000-000 `reading-3, passage`
- **2016-05-26** Added Alternate Co-Sponsor Rep. Jack D. Franks
- **2016-05-26** Added Alternate Co-Sponsor Rep. Linda Chapa LaVia
- **2016-05-26** Added Alternate Co-Sponsor Rep. Brian W. Stewart
- **2016-05-26** Added Alternate Co-Sponsor Rep. Patricia R. Bellock
- **2016-05-26** Added Alternate Co-Sponsor Rep. Camille Y. Lilly
- **2016-05-26** Passed Both Houses
- **2016-06-24** Sent to the Governor `executive-receipt`
- **2016-08-16** Governor Approved `executive-signature`
- **2016-08-16** Effective Date August 16, 2016
- **2016-08-16** Public Act . . . . . . . . . 99-0825 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/2235c98d-d0ee-471b-871e-9c26080a3ecb`. Confidence: reported (aggregated from official Illinois legislature records).