# Illinois HB2541: PRADER-WILLI SYNDROME Illinois HB2541, PRADER-WILLI SYNDROME, is a 104th General Assembly (2025–2026) House bill sponsored by Nicole La Ha (Republican); status in committee, last action 2026-03-13 (Added Co-Sponsor Rep. Natalie A. Manley) (as of 2026-11-01). - Canonical: https://policyrisk.com/state-bill/IL-HB2541-2025-2026 - As of: 2026-11-01 - Plain-text twin of the page above; the HTML and this file carry the same facts. ## Facts - Bill: Illinois HB2541 - State: Illinois - Session: 104th General Assembly (2025–2026) - Title: PRADER-WILLI SYNDROME - Status: in committee - Chamber: House - Introduced: 2025-02-04 - Last action: 2026-03-13, Added Co-Sponsor Rep. Natalie A. Manley - Sponsor: Nicole La Ha (Republican) - Cosponsors: 15 - Subjects: human services - Touches household money: no - Economic provisions PRIA read: 0 ## Summary Amends the Mental Health and Developmental Disabilities Code. Expands the definition of "developmental disability" to include a disability attributable to Prader-Willi syndrome. Amends the Developmental Disability and Mental Disability Services Act. Expands the definition of "severe and multiple impairments" to include a substantial disability attributable to Prader-Willi syndrome. Exempts persons diagnosed with Prader-Willi syndrome from any assessment or evaluation to measure cognitive functioning or IQ for purposes of making determinations on whether such persons have severe and multiple impairments eligible for home-based and community-based services. Amends the Mental Health and Developmental Disabilities Administrative Act. Requires the Department of Human Services to include Prader-Willi syndrome as a developmental disability in any rule defining the term "developmental disability" and in any rule listing specific medical conditions or disabilities eligible for developmental disability services provided by the Department. Amends the Statute on Statutes. Provides that, except where the context indicates otherwise: (i) in any rule, contract, or other document the term "developmental disability" shall include a disability attributable to Prader-Willi syndrome; and (ii) whenever there is a reference in any Act to "development disability" the term shall be construed to include a disability attributable to Prader-Willi syndrome. ## Bill overview No economic impacts identified for this bill. ## Sponsors and cosponsors - Sponsor: Nicole La Ha (Republican), House - Cosponsor: Brad Stephens (Republican), House - Cosponsor: Brandun Schweizer (Republican), House - Cosponsor: Diane Blair-Sherlock (Democratic), House - Cosponsor: Jed Davis (Republican), House - Cosponsor: Jennifer Sanalitro (Republican), House - Cosponsor: Kelly M. Cassidy (Democratic), House - Cosponsor: Kevin Schmidt (Republican), House - Cosponsor: Lindsey LaPointe (Democratic), House - Cosponsor: Maura Hirschauer (Democratic), House - Cosponsor: Michael J. Coffey, Jr. (Republican), House - Cosponsor: Michelle Mussman (Democratic), House - Cosponsor: Natalie A. Manley (Democratic), House - Cosponsor: Norine K. Hammond (Republican), House - Cosponsor: Terra Costa Howard (Democratic), House - Cosponsor: Tony M. McCombie (Republican), House ## Actions (24) - 2026-03-13: Added Co-Sponsor Rep. Natalie A. Manley (House) - 2025-03-28: Added Co-Sponsor Rep. Maura Hirschauer (House) - 2025-03-21: House Committee Amendment No. 1 Rule 19(c) / Re-referred to Rules Committee (House) - 2025-03-21: Rule 19(a) / Re-referred to Rules Committee (House) - 2025-03-13: House Committee Amendment No. 1 Rules Refers to Human Services Committee (House) - 2025-03-12: House Committee Amendment No. 1 Referred to Rules Committee (House) - 2025-03-12: House Committee Amendment No. 1 Filed with Clerk by Rep. Nicole La Ha (House) - 2025-03-12: Added Co-Sponsor Rep. Diane Blair-Sherlock (House) - 2025-03-12: Added Co-Sponsor Rep. Kelly M. Cassidy (House) - 2025-03-12: Added Co-Sponsor Rep. Terra Costa Howard (House) - 2025-03-06: Added Co-Sponsor Rep. Lindsey LaPointe (House) - 2025-03-04: Assigned to Human Services Committee (House) - 2025-02-26: Added Co-Sponsor Rep. Michael J. Coffey, Jr. (House) - 2025-02-25: Added Co-Sponsor Rep. Brandun Schweizer (House) - 2025-02-25: Added Co-Sponsor Rep. Brad Stephens (House) - 2025-02-25: Added Co-Sponsor Rep. Kevin Schmidt (House) - 2025-02-25: Added Co-Sponsor Rep. Jed Davis (House) - 2025-02-25: Added Co-Sponsor Rep. Norine K. Hammond (House) - 2025-02-24: Added Co-Sponsor Rep. Tony M. McCombie (House) - 2025-02-14: Added Co-Sponsor Rep. Michelle Mussman (House) - 2025-02-11: Added Chief Co-Sponsor Rep. Jennifer Sanalitro (House) - 2025-02-04: Referred to Rules Committee (House) - 2025-02-04: First Reading (House) - 2025-02-04: Filed with the Clerk by Rep. Nicole La Ha (House) ## Bill text - House Amendment 1: [PDF](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB2541ham001.pdf) - Introduced: [PDF](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB2541.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 - [House Amendment 1 (PDF)](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB2541ham001.pdf) - [Introduced (PDF)](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB2541.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-HB2541-2025-2026 (as of 2026-11-01).