Fewer than 40% of the electric school buses funded under the Biden administration's federal grant program have reached school districts, according to the Environmental Protection Agency's own delivery data.

The figure covers buses awarded through the EPA's Clean School Bus Program, the multi-billion-dollar initiative funded by the 2021 bipartisan infrastructure law to replace diesel school buses with battery-electric and other low-emission models. EPA's tally shows that while the agency has obligated the awards, the majority of the vehicles remain undelivered to the districts that won them.

The delivery shortfall matters for the material stream as much as for school transportation fleets. Each electric school bus that enters service eventually feeds a distinct end-of-life pipeline: lithium-ion battery packs weighing hundreds of kilograms per vehicle, copper-heavy power electronics, and steel bus bodies. Slower fleet turnover delays the point at which recyclers and battery-processing operators can expect those packs to arrive at scale. The program's pace therefore sets a timeline — however distant — for the volume of end-of-life bus batteries that dismantlers, black mass producers and hydrometallurgical refiners will need capacity for.

EPA's numbers distinguish between buses ordered and buses delivered, and the gap between the two categories is where the program currently sits. Award recipients — school districts and fleet operators across the states — have placed orders with manufacturers, but supply chain constraints, production backlogs and charging-infrastructure buildouts have kept the delivered share below the 40% mark.

The program is one of the largest single-line electrification commitments the federal government has made to a specific vehicle class, and its delivery rate is now the tracking metric that decides whether the pledged fleet conversion becomes built capacity or stays an announced project. For an administration that framed the awards as a circularity and emissions commitment, the deadline structure of the grants — which require delivered, operating buses within defined timeframes — turns each undelivered bus into a compliance exposure for its recipient district.

What happens next turns on the EPA's delivery schedule and the manufacturers' ability to clear order backlogs. The milestone to watch: whether the delivered share crosses the halfway mark before the program's deadlines force districts to forfeit or restructure awards they cannot fulfill.