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HB4399

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VEH CD-BIODIESEL USE

What this bill does

Amends the Illinois Vehicle Code. Provides that, beginning July 1, 2027, a diesel powered vehicle owned or operated by the State, any county or unit of local government, any school district, any community college or public college or university, or any mass transit agency must use a biodiesel blend that contains 19%, unless the engine is designed or retrofitted to operate on a higher percentage of biodiesel or on ultra low sulfur fuel. Allows, in December, January, February, and March, a biodiesel blend of at least 10% to be used. Effective immediately.

Sponsor: Eva-Dina Delgado Chamber: House Introduced: 2026-01-13
Stuck
P(Advance)
15.2%
Chance it ever reaches a milestone (committee, floor, etc.). Not “next step.”
P(Law)
0.0%
Chance it becomes law given where it is now (stage, momentum).
Confidence: 85%

Calculating prediction drivers...

Pipeline Progress

Current stage: In Committee · Last action 103 days ago · SLOW

How does a bill become law in Illinois?
  1. Introduction of Bill

    A member of the Senate or the House introduces a bill, which is assigned a unique identifying number (e.g., "H.B. ___" for House bills and "S.B. ___" for Senate bills). If not enacted, it must be reintroduced in the next General Assembly with a new number.

  2. Committee Work — Hearings

    The bill goes to the appropriate committee, which holds hearings to gather expert opinions and determine the need for the legislation.

  3. Committee Work — Markup, Amendments, Report

    The committee may make amendments to the bill. If approved, a committee report endorsing the bill is issued.

  4. Floor Debate

    The bill is debated and can be further amended. The debate transcripts are accessible online for public viewing.

  5. Passage and Consideration in Second Chamber

    If the bill passes in the first chamber, it moves to the second chamber for a similar review process. If both chambers approve, it goes to the governor.

  6. Gubernatorial Action

    The governor can sign the bill into law, veto it, or take no action (resulting in an automatic law after 60 days). The type of veto can be total or amendatory. Once signed, the bill becomes a Public Act and is assigned a Public Act number.

Sponsor Context

Public Engagement

17 witness slips filed 14 proponents / 2 opponents 6 organizations

Hearings

This bill has not been scheduled for a committee hearing.

Witness slips

17 slips filed. Proponent / opponent / no position as filed with the committee.

Name Organization Representing Position Hearing committee Hearing date
carol self Proponent Transportation: Vehicles & Safety 2026-02-18
Dany Robles Illinois Environmental Council Illinois Environmental Council Proponent Transportation: Vehicles & Safety 2026-02-18
David Schwartz Self Self Proponent Transportation: Vehicles & Safety 2026-02-18
Donald Oplt self self Proponent Transportation: Vehicles & Safety 2026-02-18
Litsa Adamov Self Proponent Transportation: Vehicles & Safety 2026-02-18
Michael Lane Illinois Municipal League Proponent Transportation: Vehicles & Safety 2026-02-18
Nathan Roberts Self Proponent Transportation: Vehicles & Safety 2026-02-18
Rachel Fredericks NA Proponent Transportation: Vehicles & Safety 2026-02-18
Robin Weller NA Proponent Transportation: Vehicles & Safety 2026-02-18
Sandy Crawford Self Self Proponent Transportation: Vehicles & Safety 2026-02-18
Susan Hickey NA Proponent Transportation: Vehicles & Safety 2026-02-18
Toni Louise Oplt self Metro East Green Alliance Proponent Transportation: Vehicles & Safety 2026-02-18
Toni Louise Oplt self self Proponent Transportation: Vehicles & Safety 2026-02-18
William Koehl self self Proponent Transportation: Vehicles & Safety 2026-02-18
Donald E. Viecelli Self Self Opponent Transportation: Vehicles & Safety 2026-02-18
Molly Rockford Molly Rockford & Associates Illinois Public Transportation Association Opponent Transportation: Vehicles & Safety 2026-02-18
Nate Harris Illinois Fuel & Retail Association Illinois Fuel & Retail Association No Position On Merits Transportation: Vehicles & Safety 2026-02-18

Action History

4 actions recorded. Last action: 2026-02-11 — Assigned toTransportation: Vehicles & Safety. Each action's meaning and outcome signal are classified automatically.

2026-01-13 Introduction & Filing
Filed with the Clerk byRep. Eva-Dina Delgado House Rule 6(b)
Bill officially submitted to the House Clerk during the session.
2026-01-14 Introduction & Filing
First Reading Senate Rule 5-1(d)/5-2; House Rule 37(d)/38
Formal introduction — title read into the official record. Required procedural step; bill now exists in the system.
2026-01-14 Committee Assignment
Referred toRules Committee Senate Rule 3-8(a); House Rule 18(a)
Sent to a committee (usually Rules in the House, Assignments in the Senate). The gatekeeping step — Rules/Assignments decides which substantive committee hears the bill.
2026-02-11 Committee Assignment
Assigned toTransportation: Vehicles & Safety Senate Rule 3-8(a); House Rule 18(b)
Sent to a substantive committee (e.g., Transportation, Revenue). This is where the bill gets a real hearing and evaluation.

All actions (table)

Date Chamber Action Category Signal
2026-01-13 House Filed with the Clerk byRep. Eva-Dina Delgado House Rule 6(b) Introduction & Filing —
2026-01-14 House First Reading Senate Rule 5-1(d)/5-2; House Rule 37(d)/38 Introduction & Filing —
2026-01-14 House Referred toRules Committee Senate Rule 3-8(a); House Rule 18(a) Committee Assignment —
2026-02-11 House Assigned toTransportation: Vehicles & Safety Senate Rule 3-8(a); House Rule 18(b) Committee Assignment —