Diesel Emissions Reduction Act of 2025

What this does

This bill reauthorizes the diesel emissions reduction program. It amends the Energy Policy Act of 2005 to extend the program's authorization of appropriations, which had run through fiscal year 2024, through fiscal year 2029. The bill does not change how the program works, only how long it is authorized to receive funding. The House passed it on September 15, 2026, 343 to 79.

House vote · 343-79

Democrats

212–0

Republicans

130–79

Independents

1–0

How we know · 2 sourced claims

The bill amends Section 797(a) of the Energy Policy Act of 2005 to reauthorize the diesel emissions reduction program, extending its authorization of appropriations from fiscal year 2024 through fiscal year 2029.Source: Sec. 2, 'Reauthorization of diesel emissions reduction act': 'Section 797(a) of the Energy Policy Act of 2005 ( 42 U.S.C. 16137(a) ) is amended by striking 2024 and inserting 2029 .'
The House passed the bill on September 15, 2026, 343 to 79.Source: Vote of September 15, 2026, Roll No. 304

Read the bill on congress.gov ↗

Reported lobbying

At least

organizations named this measure in a lobbying filing.

A floor, not a total. Those organizations were counted by the client name on 48 quarterly reports filed by 11 registered lobbying firms in 2025 Q1, 2025 Q2, 2025 Q3, 2025 Q4, 2026 Q1 and 2026 Q2. The disclosure form takes a free text description of the issue, so an organization that lobbied this measure without naming it is not counted here.

30 of those filings did not cite this bill by number. They named a short title it shares with its Senate companion, S 2235, so the reference belongs to the pair rather than to one chamber’s vehicle.

The filings record that lobbying was reported on the measure. They carry no per-bill dollar figure and no position, so nothing here says how much was spent or which side an organization took.

5 of them, in no ranking

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT
MOJAVE DESERT AIR QUALITY MANAGEMENT DISTRICT
SAN JOAQUIN VALLEY AIR POLLUTION CONTROL DISTRICT
CUMMINS INC
ENGINE MANUFACTURERS ASSOCIATION

Listed as filed, in the order the filings were read, and 7 others are not shown. These are not the largest, the earliest or the most active: the extract keeps five names per measure and no ranking is available.

From the LD-2 quarterly lobbying filings published at lda.gov by the Senate Office of Public Records. Read for 2025 Q1, 2025 Q2, 2025 Q3, 2025 Q4, 2026 Q1 and 2026 Q2. The pull came up 2 short in 2025 Q4 and 7 short in 2026 Q2 against the register's own count, so those quarters are the filings posted rather than every one filed. 2026 Q3 is still inside its filing window, so that quarter is only the filings posted so far.

Your representatives

How did your member vote on this?

House roll call

The full roll call

R130–79D212–0I1–0

Position

Party

State

Republicans

217

Democrats

214

Independents

YeaKevin KileyCA · District 3