H.R. 2140Diesel Emissions Reduction Act of 2025

1 recorded actionWhat the measure does Read on Congress.gov

Sponsor: Doris O. Matsui [D-CA-07]
Cosponsors: 3 · 2 Republicans · 1 Democrat
Policy area: Environmental Protection
Committee: Energy and Commerce Committee
Latest action: Sep 16, 2026 · Received in the Senate. Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 624.

IntroducedMar 14, 2025
Passed the HouseSep 15, 2026
Passed the SenateNot yet reached
Sent to the PresidentNot yet reached
Became lawNot yet reached

What the measure doesCRS summary

This bill reauthorizes through FY2029 a diesel emissions reduction program under which the Environmental Protection Agency provides grants, rebates, or loans for replacing diesel engines or retrofitting the engines with pollution control technologies.

Written by the nonpartisan Congressional Research Service, describing H.R. 2140 as introduced in House on Mar 14, 2025. It is not the text of the measure; a later amendment may have changed what it does.

How every member votedHouse roll call 304

House Sep 15, 2026

On Motion to Suspend the Rules and Pass

Diesel Emissions Reduction Act

Passed · Two-thirds required

343 Yea 79 Nay 10 not voting

Crossed both parties 79 of 422 voting members broke with their own party: 79 Republicans.

Open the official roll call

How the chamber split

One dot per member. Select a seat or a bar to filter the list.

DemocratsIndependentsRepublicansFilled: YeaRing: NayGrey: not voting or present

By party select a segment to filter

All members432 members

Democratic214 members

Independent1 member

Republican217 members

marks half of the votes cast. A party’s majority is the side most of its voting members took.

Cosponsors3 · 2 Republicans · 1 Democrat

Signing on is not a vote: a member can cosponsor H.R. 2140 and vote against it. 3 signed when it was filed.

RKen Calvert [R-CA-41]Original2026 profile

DChellie Pingree [D-ME-01]Original2026 profile

RNicholas A. Langworthy [R-NY-23]Original2026 profile

Loading the public record

Who lobbied on H.R. 21408 organizations

Organizations that named H.R. 2140 in a lobbying disclosure. Only those that cited the bill by number appear, so this is a floor, not a full list.

AMERICAN LUNG ASSOCIATION

Budget/Appropriations · Clean Air and Water (quality) · Health Issues · Medical/Disease Research/Clinical Labs +5 more7 filings · 3rd Quarter (July 1 - Sep 30) 2026Filing

AMERICAN TRUCKING ASSOCIATIONSIts PAC: Trucking PAC of the American Trucking Associations Inc.

Environment/Superfund · Trade (domestic/foreign) · Labor Issues/Antitrust/Workplace · Small Business +7 more7 filings · 3rd Quarter (July 1 - Sep 30) 2026Filing

CATERPILLAR INCfiled by CATERPILLAR INC.Its PAC: Caterpillar Inc. PAC

Trucking/Shipping · Energy/Nuclear · Financial Institutions/Investments/Securities · Law Enforcement/Crime/Criminal Justice +7 more2 filings · 3rd Quarter (July 1 - Sep 30) 2026Filing

CUMMINS INCfiled by CUMMINS, INC.Its PAC: Cummins Inc. PAC

Transportation · Trade (domestic/foreign) · Defense · Clean Air and Water (quality) +3 more2 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

ENGINE MANUFACTURERS ASSOCIATIONfiled by CROWELL & MORING LLP

Trucking/Shipping2 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

SIERRA CLUB

Trade (domestic/foreign) · Environment/Superfund · Budget/Appropriations · Energy/Nuclear +14 more2 filings · 3rd Quarter (July 1 - Sep 30) 2026Filing

EARTHJUSTICE ACTION

Chemicals/Chemical Industry · Agriculture · Energy/Nuclear · Government Issues +5 more1 filing · 3rd Quarter (July 1 - Sep 30) 2026Filing

LEAGUE OF CONSERVATION VOTERSIts PAC: League of Conservation Voters Action Fund

Energy/Nuclear · Environment/Superfund · Clean Air and Water (quality) · Natural Resources +7 more1 filing · 3rd Quarter (July 1 - Sep 30) 2026Filing

24 disclosures name this measure. Retrieved from LDA.gov on 2026-10-25. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.