Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps she is taking to help decarbonise refrigerated transport.

The Department for Transport continues to work with the Department for Energy Security and Net Zero (DESNZ) and the Department for Environment, Food and Rural Affairs (Defra) on an Off-Road Machinery Decarbonisation Strategy, which includes transport refrigeration units (TRUs). This strategy will set out how off-road machinery can further decarbonise while maintaining competitiveness, attracting investment and supporting growth. To support this, we are reviewing the findings of a multi-year research project commissioned to ZEMO Partnership into the emissions from diesel-powered auxiliary engines, including from TRUs used on heavy goods vehicles. Alongside this, the Transport Industrial Commercial Refrigeration project, funded through the DESNZ Net Zero Innovation Portfolio, is expected to publish a roadmap that includes transport refrigeration in Spring 2026. The Department will review the roadmap and consider its implications.