---
type: "Bill"
title: "DRUG SUBSTITUTION-GENERICS"
description: "Amends the Illinois Food, Drug and Cosmetic Act. Deletes provisions requiring manufacturers to provide the Director of Public Health with a notification containing product technical bioequivalence information no later than 60 days prior to specified generic drug product substitution. Effective immediately."
jurisdiction: "us/states/il"
legislature: "Illinois General Assembly"
session: "100th"
identifier: "HB 2531"
citation: "Illinois HB 2531 (100th)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: []
version_count: 3
action_count: 26
vote_count: 2
first_action: "2017-02-08"
last_action: "2017-08-11"
source: "openstates"
source_identifier: "ocd-bill/6729efb8-cb3b-4fc1-90da-b966764389b0"
source_url: "http://ilga.gov/legislation/BillStatus.asp?DocNum=2531&GAID=14&DocTypeID=HB&LegId=103711&SessionID=91&GA=100"
source_hash: "d7bc7f8e326d6499368e2b86b79c1d82f3280cb73d07f26f29c47a176e2e3cad"
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 2531 (100th) — DRUG SUBSTITUTION-GENERICS

Amends the Illinois Food, Drug and Cosmetic Act. Deletes provisions requiring manufacturers to provide the Director of Public Health with a notification containing product technical bioequivalence information no later than 60 days prior to specified generic drug product substitution. 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=10000HB2531&GA=100&SessionId=91&DocTypeId=HB&LegID=103711&DocNum=2531&GAID=14&Session=&print=true)
2. **Engrossed** (committee substitute) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB2531eng&GA=100&SessionId=91&DocTypeId=HB&LegID=103711&DocNum=2531&GAID=14&Session=&print=true)
3. **Enrolled** (enrolled) — [source](http://ilga.gov/legislation/fulltext.asp?DocName=10000HB2531enr&GA=100&SessionId=91&DocTypeId=HB&LegID=103711&DocNum=2531&GAID=14&Session=&print=true)

## Votes

- Third Reading — **110–0** (pass) · lower
- Third Reading — **53–0** (pass) · upper

## Sponsors

- Norine K. Hammond — primary (person)

## Timeline

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

- **2017-02-08** Filed with the Clerk by Rep. Norine K. Hammond `filing`
- **2017-02-08** First Reading `reading-1`
- **2017-02-08** Referred to Rules Committee `referral-committee`
- **2017-02-22** Assigned to Human Services Committee `referral-committee`
- **2017-03-08** Do Pass / Short Debate Human Services Committee; 012-000-000 `committee-passage`
- **2017-03-08** Placed on Calendar 2nd Reading - Short Debate
- **2017-03-09** Second Reading - Short Debate `reading-2`
- **2017-03-09** Placed on Calendar Order of 3rd Reading - Short Debate
- **2017-03-15** Third Reading - Short Debate - Passed 110-000-000 `reading-3, passage`
- **2017-03-15** Added Chief Co-Sponsor Rep. Patricia R. Bellock
- **2017-03-16** Arrive in Senate `introduction`
- **2017-03-16** Placed on Calendar Order of First Reading `reading-1`
- **2017-03-16** Chief Senate Sponsor Sen. Jil Tracy
- **2017-03-16** First Reading `reading-1`
- **2017-03-16** Referred to Assignments `referral-committee`
- **2017-04-25** Assigned to Public Health `referral-committee`
- **2017-05-03** Do Pass Public Health; 006-000-000 `committee-passage`
- **2017-05-03** Placed on Calendar Order of 2nd Reading May 4, 2017
- **2017-05-12** Second Reading `reading-2`
- **2017-05-12** Placed on Calendar Order of 3rd Reading May 15, 2017
- **2017-05-19** Third Reading - Passed; 053-000-000 `reading-3, passage`
- **2017-05-19** Passed Both Houses
- **2017-06-16** Sent to the Governor `executive-receipt`
- **2017-08-11** Governor Approved `executive-signature`
- **2017-08-11** Effective Date August 11, 2017
- **2017-08-11** Public Act . . . . . . . . . 100-0065 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/6729efb8-cb3b-4fc1-90da-b966764389b0`. Confidence: reported (aggregated from official Illinois legislature records).