# Illinois HB4583: CD CORR-SUBSTANCE USE DISORDER

Illinois HB4583, CD CORR-SUBSTANCE USE DISORDER, is a 104th General Assembly (2025–2026) House bill sponsored by Will Guzzardi (Democratic); status in committee, last action 2026-03-27 (Rule 19(a) / Re-referred to Rules Committee) (as of 2026-11-01).

- Canonical: https://policyrisk.com/state-bill/IL-HB4583-2025-2026
- As of: 2026-11-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Illinois HB4583
- State: Illinois
- Session: 104th General Assembly (2025–2026)
- Title: CD CORR-SUBSTANCE USE DISORDER
- Status: in committee
- Chamber: House
- Introduced: 2026-01-23
- Last action: 2026-03-27, Rule 19(a) / Re-referred to Rules Committee
- Sponsor: Will Guzzardi (Democratic)
- Cosponsors: 0
- Subjects: appropriations-public safety and infrastructure
- Touches household money: no
- Economic provisions PRIA read: 0

## Summary

Amends the Unified Code of Corrections. Provides that the Department of Corrections shall ensure all persons under its care are assessed for substance use disorder, as defined in the Substance Use Disorder Act. Provides that this process includes screening and assessment for opioid use disorders. Provides that for a committed person diagnosed with opioid use disorder, the Department shall offer, or facilitate access to, all medication-assisted treatment options deemed appropriate by an authorized health care professional. Provides that the Department shall not impose limitations on the types of medication assisted treatment that may be recommended by an authorized health care professional as part of a treatment plan. Provides that an individual receiving medication-assisted treatment prior to being committed to a Department of Corrections facility shall be entitled to, upon request, continue such treatment in the medication assisted treatment program for any period of time deemed medically necessary by an authorized health care professional. Provides that no person shall be denied participation in medication-assisted treatment program on the basis of a positive drug screening upon entering the Department's custody; nor shall any person receive a disciplinary infraction for such positive drug screen. Provides that no person shall be denied participation in medication-assisted treatment based on prior success or failure of any medication-assisted treatment program. Provides that for each Parole District, the Department shall develop a plan to facilitate access to medication-assisted treatment for persons diagnosed with opioid use disorder in the community following release. Provides that the Department may adopt rules for the implementation of these provisions. Effective January 1, 2027.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Will Guzzardi (Democratic), House

## Actions (5)

- 2026-03-27: Rule 19(a) / Re-referred to Rules Committee (House)
- 2026-02-24: Assigned to Appropriations-Public Safety and Infrastructure Committee (House)
- 2026-02-03: Referred to Rules Committee (House)
- 2026-02-03: First Reading (House)
- 2026-01-23: Filed with the Clerk by Rep. Will Guzzardi (House)

## Bill text

- Introduced: [PDF](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB4583.pdf)

## Related bills

- HB5198: AFFORDABLE HOUSING-CILAS (passed house)
- SB1937: PENSION CODE-VARIOUS (passed senate)
- HB2563: CONDO-RESERVE STUDY (in committee)
- HB4701: LIMITATIONS FACILITY FEES ACT (in committee)
- SB3008: DHS-ABLE PROGRAM INFO MATERIAL (passed senate)
- SB3484: VEH CD-PLATES-REGISTRATION (signed)

## Sources
- [Introduced (PDF)](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB4583.pdf)

## Related
- [HB5198: AFFORDABLE HOUSING-CILAS](https://policyrisk.com/state-bill/IL-HB5198-2025-2026)
- [SB1937: PENSION CODE-VARIOUS](https://policyrisk.com/state-bill/IL-SB1937-2025-2026)
- [HB2563: CONDO-RESERVE STUDY](https://policyrisk.com/state-bill/IL-HB2563-2025-2026)
- [HB4701: LIMITATIONS FACILITY FEES ACT](https://policyrisk.com/state-bill/IL-HB4701-2025-2026)
- [SB3008: DHS-ABLE PROGRAM INFO MATERIAL](https://policyrisk.com/state-bill/IL-SB3008-2025-2026)
- [SB3484: VEH CD-PLATES-REGISTRATION](https://policyrisk.com/state-bill/IL-SB3484-2025-2026)
- [Illinois bills](https://policyrisk.com/states/illinois/bills)
- [Illinois state hub](https://policyrisk.com/states/illinois)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/IL-HB4583-2025-2026 (as of 2026-11-01).