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ENERGY · forward · impact 2/5 · 2026-09-18 · US House of Representatives

US House Extends Diesel Emissions Program Through 2029

US House votes to extend federal diesel engine cleanup funding through 2029

The US House of Representatives passed House Resolution 2140 on September 18, 2026, extending the Diesel Emissions Reduction Act (DERA) funding through fiscal year 2029. The bipartisan vote occurred with a tally of 343-79. The legislation authorizes $100 million annually for the DERA grant program, introduced by Representatives Doris Matsui (D-CA), Ken Calvert (R-CA), Chellie Pingree (D-ME), and Nick Langworthy (R-NY). Administered by the EPA, the program has removed tens of thousands of diesel engines from roads over two decades and saved fleets more than 500 million gallons of fuel since its inception.

This extension supports cleaner air by maintaining federal incentives for medium- and heavy-duty vehicle electrification. The EPA’s historical data shows the program’s scale of engine removals and fuel savings, but the vote does not yet confirm health cost reductions or environmental damage mitigation. Senate approval and presidential signature are required for enactment. The source does not verify direct health cost savings from this specific program extension, nor does it quantify pollution reductions beyond the program’s historical fuel savings and engine removals. A reader must consult the full source for health impact assessments and current pollution metrics.

Source: Electrek