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Read. Follow. Verify.Connecticut bill modifies traffic signal grants, adjusts zero-emission school bus fleet deadlines, and creates freight rail working group
Last action · April 7, 2026: File Number 468Sponsors: Joseph P. Gresko and 2 others
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What This Bill Proposed
Connecticut lawmakers are advancing a bill that adjusts deadlines and targets for school districts to transition to zero-emission buses, requires diesel-powered school buses to run on a 20% biodiesel blend starting in July 2027, authorizes $40 million in bonds for bus grants, and shifts traffic signal modernization grant priorities to congested areas.
School districts face revised fleet transition timelines and new fuel mandates that alter operating costs and capital planning, while municipalities gain updated parameters for traffic signal grants and freight rail transport studies.
- Connecticut previously established a goal requiring 100% of school buses statewide to be zero-emission by 2040, with faster timelines for environmental justice communities. context
- Distressed municipalities are designated annually by the Department of Economic and Community Development based on economic and demographic indicators. context
Who It Would Have Affected
Groups the bill's text would have affected, as described in the record. Being affected is not a position for or against it.
Local and regional school districts
School districts must submit compliance plans and schedules for zero-emission bus fleet transitions and adjust operating procedures to meet new fleet percentages and fuel blending mandates.
School bus carriers
Carriers operating fully diesel-powered school buses must source and use biodiesel blends containing at least 20% biodiesel starting July 1, 2027, unless it voids warranties.
Municipalities
Key Facts
- The Department of Transportation must prioritize traffic signal modernization grant applications for projects in heavily congested areas rather than multi-municipal joint applications.
- Up to $75 million from an existing Department of Transportation bond authorization is earmarked for the traffic signal modernization grant program.
- The bill lowers the requirement that all school buses be zero-emission by 2040 to 90% for all school districts.
- Distressed municipalities must transition their school bus fleets to 10% zero-emission by July 1, 2030, and 50% by July 1, 2035.
Show all 9 facts
- Distressed municipalities must submit a compliance plan and schedule to the Department of Energy and Environmental Protection by July 1, 2029, while other municipalities must submit theirs by July 1, 2035.
- Starting July 1, 2027, school bus carriers must fuel fully diesel-powered school buses with a biodiesel blend containing at least 20% biodiesel, provided it is available and does not void warranties.
- The State Bond Commission is authorized to issue up to $40 million in general obligation bonds for the zero-emission school bus grant program administered by the Department of Energy and Environmental Protection.
- The Department of Economic and Community Development must convene a working group to study freight rail incentives and infrastructure, and report findings to the Transportation Committee by January 1, 2027.
- Setting up the freight rail working group results in a one-time cost of $150,000 to the Department of Economic and Community Development in fiscal year 2027.
Frequently Asked Questions
Are traditional diesel school buses banned immediately under this bill?
How much funding is authorized for the zero-emission school bus grant program?
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News Coverage
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Votes, people, money & the original sourceWhere This Stands
This bill did not become law - Died at adjournment · on the Senate floor.
Procedural history
9 actions- Apr 7, 2026Connecticut General AssemblyFile Number 468
- Apr 7, 2026SenateSenate Calendar Number 280
- Apr 7, 2026SenateFavorable Report, Tabled for the Calendar, Senate
- Apr 7, 2026Connecticut General AssemblyReported Out of Legislative Commissioners' Office
- Mar 30, 2026Connecticut General AssemblyReferred to Office of Legislative Research and Office of Fiscal Analysis 04/07/26 12:00 PM
- Mar 19, 2026Connecticut General AssemblyFiled with Legislative Commissioners' Office
Show 3 earlier actions
- Mar 16, 2026Connecticut General AssemblyJoint Favorable Substitute
- Mar 5, 2026Connecticut General AssemblyPublic Hearing 03/09
- Mar 4, 2026Connecticut General AssemblyCommitteeReferred to Joint Committee on Transportation
Version history
Only one version on file - nothing to compare yet. As later stages (committee substitute, engrossed, enrolled) are captured, the redline appears here.
View official text →Lobbying Activity
No state lobbying filings in our records match this bill. Federal lobbying reports (LDA) cover Congress, so they are not listed on state bills.
Full breakdown
Who this bill affects and the strongest case for and against it, written only from the bill’s own text.
Sponsors
Discoveries
Patterns POLISCOPE noticed across the record. These are observations to investigate, not conclusions.
Relaxation of 100% Zero-Emission Mandate
The bill shifts state policy from a strict 100% zero-emission school bus requirement by 2040 to a 90% requirement, and eliminates the 2030 target previously applied to environmental justice communities.
Connected Entities
Sources
cga.ct.gov
Analysis Score
0–100- Significance20Lowered because this bill did not pass (its text scored 75)
- Controversy40Intensity of disagreement among stakeholders
- Entertainment10Compellingness for a non-policy-wonk reader
- Buzz30Current news / social attention level
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