COM(2020) 301 final - A hydrogen strategy for a climate-neutral Europe

https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:52020DC0301&from=EN

The Commission's hydrogen strategy defines renewable hydrogen as hydrogen produced through the electrolysis of water powered by electricity from renewable sources or through the reforming of biogas
or biochemical conversion of biomass.

In EU legislation, renewable hydrogen and hydrogen-derived fuels produced without the use of biomass are referred to as renewable fuels of non-biological origin (RFNBO). The hydrogen strategy defines low-carbon hydrogen by significantly reduced full life-cycle GHG
emissions