HR 2140 United States House · 119th Congress

Diesel Emissions Reduction Act of 2025

HR 2140, the Diesel Emissions Reduction Act of 2025, extends the expiration date of the existing Diesel Emissions Reduction Act program. It amends Section 797(a) of the Energy Policy Act of 2005 by changing the end date from 2024 to 2029. This bill does not create new programs or funding; it simply prolongs the current program's authorization period. The change affects the continuation of the existing federal program that supports state and local efforts to reduce diesel emissions from older vehicles.

Issues: ✓ Environment ✓ Transportation

Sub-Topics: Climate Change

Bill status passed 3 of 5 stages cleared

Introduction

Mar 2025

Committee Review

Sep 2026

House Passage

Sep 2026

Senate Passage

President

Introduced Mar 14, 2025 Last action Sep 16, 2026

Maddy AI version diff · 1 comparison

What changed between versions

Introduced in House → Engrossed in House · 1 edit · Sep 15, 2026

MINOR

The only change between the Introduced and Engrossed versions of HR 2140 is a minor formatting adjustment to the section heading on line 2, which appears textually identical. The substantive provision extending the diesel emissions reduction authorization from 2024 to 2029 was already present in both versions as unchanged context.

TECHNICAL

Section heading on line 2 was removed and re-added with what appears to be identical text, likely reflecting a whitespace or encoding correction during the engrossment process. No substantive policy change occurred.

Floor votes · House Sep 15, 2026

How they voted

343–79

Passed · 10 other

Total votes 432

Sep 15, 2026

D Democratic214

212 Yea 2

99% Yea

I Independent1

1 Yea

100% Yea

R Republican217

130 Yea 79 Nay 8

59% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Sep 15, 2026

Lower · Passed

Passed/agreed to in House: On motion to suspend the rules and pass the bill Agreed to by the Yeas and Nays: (2/3 required): 343 - 79 (Roll no. 304).

lower

Sep 14, 2026

Lower · Passed

Reported by the Committee on Energy and Commerce. H. Rept. 119-819.

lower

Jul 14, 2026

Lower · Passed

Forwarded by Subcommittee to Full Committee by Voice Vote.

lower

Jul 14, 2026

Lower · Passed

Subcommittee Consideration and Mark-up Session Held

lower

Mar 14, 2025

Committee

Referred to the Subcommittee on Environment.

lower

Mar 14, 2025

Committee

Referred to the House Committee on Energy and Commerce.

lower

Mar 14, 2025

Introduced

Introduced in House

lower

1 primary · 3 co-sponsors