Missouri 2026 Regular Session Status: In Committee 1 R cosponsors

HB 3515 — DIESEL-POWERED VEHICLES

Last action — Referred: Emerging Issues(H)

  1. ✓
    Introduced
  2. 2
    In Committee
  3. 3
    Passed House
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill is in committee in the House. Introduced February 27, 2026. It must pass committee before a floor vote.

Next likely step: a committee vote, then a floor vote in the House.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

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A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Stalled 16% · moderate confidence

  • In Committee

    Current position in the legislative process.

  • 1 sponsor

    1 primary, 0 co-sponsors signed on.

  • Single-party support

    Sponsorship is currently within one party (1 R).

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

In plain language

The bill prohibits using taxpayer resources to enforce federal emissions laws for diesel engines.

This bill seeks to prevent taxpayer dollars from being used to enforce federal emissions control regulations on diesel-powered vehicles. The full text of the bill is not available for further details.

Summary

Prohibits taxpayer resources from being used to enforce federal laws governing emissions control equipment on diesel engines

Bill Text

We don't have the full text on file for this bill yet.

Read HB 3515 on the official Missouri source →

Action History

  1. Referred: Emerging Issues(H)

  2. Read Second Time (H)

  3. Introduced and Read First Time (H)

Sponsors

Sponsorship breakdown

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1 sponsors · 0 co-sponsors · 198 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (198)

198 members have not signed on to this bill.

Show all 198 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

environment transportation
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

What does HB 3515 do?
Prohibits taxpayer resources from being used to enforce federal laws governing emissions control equipment on diesel engines
Who sponsors HB 3515?
HB 3515 is sponsored by Scott Cupps (Republican).
What is the current status of HB 3515?
This bill is in committee in the House. Introduced February 27, 2026. It must pass committee before a floor vote.
Where can I track HB 3515?
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Last checked for changes 3 months ago · updated continuously

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