Federal program to cut diesel pollution gets five more years

What it does

The bill extends the Diesel Emissions Reduction Program until 2029. The program gives money to reduce pollution from diesel engines. It pays for fixing up or replacing diesel vehicles and equipment.

Who it affects

People who live near ports, highways, and factories breathe cleaner air. Communities get better health when diesel pollution drops.

One thing to notice

The bill extends the program but does not promise funding levels each year. Some areas may get more help than others.

From the analysis of the bill text, linked under Primary records below.

Where it stands

3 cosponsors: 2 Republicans, 1 Democrats.

• Mar 14, 2025 — Introduced · Congress.gov: “Introduced in House”
• Mar 14, 2025 — Referred to House Committee on Energy and Commerce · Congress.gov: “Referred to the House Committee on Energy and Commerce”
• Jul 14, 2026 — Markup held in committee · Congress.gov: “Subcommittee Consideration and Mark-up Session Held”
• Sep 14, 2026 — Reported out of committee · Congress.gov: “Placed on the Union Calendar, Calendar No. 718”
• Sep 15, 2026 — Passed the House · Congress.gov: “On motion to suspend the rules and pass the bill Agreed to by the Yeas and Nays: (2/3 required): 343 - 79…”
• Sep 15, 2026 — Floor vote scheduled · Congress.gov: “Mr. Guthrie moved to suspend the rules and pass the bill”

Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.

Money around this bill

3 groups reported lobbying about this bill. They filed 3 reports from Jun 2026 to Jun 2026.

Those reports show $1,962,000 in lobbying spending. Each report lists about 78 bills. So that money was not all for this bill.

More groups named this bill than 61% of bills with any report.

Doris Matsui, who sponsored the bill, received $980,188 from PACs for the 2026 election.

• Caterpillar Inc — $1,142,000 in 1 report
• American Trucking Associations — $720,000 in 1 report
• Sierra Club — $100,000 in 1 report

Lobbying is legal. These reports show who lobbied about this bill, not what changed.

Words to know

• Diesel Emissions Reduction Program — A federal program that gives money to cut pollution from diesel engines.
• emissions — Gases and particles that come out of engines and pollute the air.
• lobbying — Trying to influence lawmakers about a bill. Companies and groups pay people to do this.
• PACs — Groups that collect money and give it to candidates for office.
• sponsored — To sponsor a bill is to introduce it in Congress and put your name on it.