London, 14 May 2025: The UK Department for Transport today announced its intention to fund the revenue certainty mechanism for sustainable aviation fuel (SAF) producers using revenues accrued from a new levy on aviation fuel suppliers.

Nuala Doyle, Policy Officer at the SASHA Coalition, said, 

“We welcome the Government's decision to fund the RCM through a levy on fuel suppliers – this will help make those responsible for emissions pay fairly for them and incentivise the transition away from fossil fuels.

That said, the RCM should focus its support on e-kerosene derived from green hydrogen, since this is the alternative fuel with the fewest lifecycle emissions, but is today still the most expensive. This means introducing measures to channel a greater proportion of the funds to e-kerosene producers, commensurate with this truly green fuel’s sustainability credentials. Failing to do so will see these limited funds misused on non-solutions like biofuels that emit more greenhouse gases, endanger our nature and biodiversity, and are not economically sustainable in the long run."

The SASHA Coalition submitted a response to a Department for Transport consultation on the funding options for the revenue certainty mechanism. The response supported the government’s proposal to make the mechanism industry-funded, in line with the polluter pays principle. However, the Coalition also urged the government to dedicate additional support to green hydrogen e-kerosene. It further recommended expanding the UK ETS to cover international aviation and non-CO2 emissions from planes to accrue further revenues for providing this support.

ENDS