# Illinois HB3505: EPA-ETO SOURCE MONITORING

Illinois HB3505, EPA-ETO SOURCE MONITORING, is a 104th General Assembly (2025–2026) House bill sponsored by Rita Mayfield (Democratic); status in committee, last action 2025-03-21 (Rule 19(a) / Re-referred to Rules Committee) (as of 2026-11-01).

- Canonical: https://policyrisk.com/state-bill/IL-HB3505-2025-2026
- As of: 2026-11-01
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Illinois HB3505
- State: Illinois
- Session: 104th General Assembly (2025–2026)
- Title: EPA-ETO SOURCE MONITORING
- Status: in committee
- Chamber: House
- Introduced: 2025-02-07
- Last action: 2025-03-21, Rule 19(a) / Re-referred to Rules Committee
- Sponsor: Rita Mayfield (Democratic)
- Cosponsors: 0
- Subjects: energy & environment
- Touches household money: no
- Economic provisions PRIA read: 0

## Summary

Amends the Environmental Protection Act. In provisions regarding ethylene oxide emissions from nonnegligible ethylene oxide emissions sources, adds requirements for an Ambient Air Monitoring Plan that substantially mirror requirements in provisions regarding ethylene oxide emissions from ethylene oxide sterilization sources. Changes the definition of "nonnegligible ethylene oxide emissions source" to any ethylene oxide emissions source permitted by the Agency that currently emits more than 30 pounds of ethylene oxide, with certain other requirements (rather than an ethylene oxide emissions source permitted by the Agency that currently emits more than 150 pounds of ethylene oxide, with certain other requirements). Removes a provision in that definition that excludes facilities that are ethylene oxide sterilization sources or hospitals that are licensed under the Hospital Licensing Act or operated under the University of Illinois Hospital Act.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Rita Mayfield (Democratic), House

## Actions (5)

- 2025-03-21: Rule 19(a) / Re-referred to Rules Committee (House)
- 2025-03-11: Assigned to Energy & Environment Committee (House)
- 2025-02-18: Referred to Rules Committee (House)
- 2025-02-18: First Reading (House)
- 2025-02-07: Filed with the Clerk by Rep. Rita Mayfield (House)

## Bill text

- Introduced: [PDF](https://www.ilga.gov/documents/legislation/104/HB/PDF/10400HB3505.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/10400HB3505.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-HB3505-2025-2026 (as of 2026-11-01).