Question to the Department for Transport:

To ask the Secretary of State for Transport, what recent discussions he and his officials have had with stakeholders on encouraging the development and use of hydrogen-injected diesel fuel engines using internal combustion assistance to make engines more efficient and limit air pollution.

The Government has regular engagement with industry on the development of zero emission technologies which can assist our ambitions for zero emission road transport. The Government has adopted a technology neutral approach and welcomes any innovative technology that can play a role in this. But we are not outcome neutral, the end goal must be zero emissions from the tailpipe. The technologies on sale, and the market share of those technologies, must be compatible with achieving our 2050 net zero climate change target and long-term air quality goals.