Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate she has made of the maximum number of vehicles that could be subsidised under the Zero Emission Truck and Van, which her Department announced on 25 March 2026, at the highest grant rates, and the corresponding total cost to the Exchequer.

The schemes have been designed so that grant funding is sufficient to fully support businesses to transition to zero emission vehicles, consistent with the Government’s plan to meet legally binding carbon budget targets. By 2030, within the current funding envelope we estimate that the schemes could award 250,000 zero emission vans grants, 20,000 zero emission trucks grants, and nearly 25,000 chargers under the depot charging scheme, although projecting this is highly uncertain.

The total cost to the Exchequer is capped based on the announced budget of £877 million. Given the existence of the budget cap, we have not separately tried to estimate the maximum number of grants that could be delivered using the highest grant rates.