Renewable Hydrogen addresses hydrogen produced by electrolysis of water or aqueous solutions (e.g., chlor-alkali electrolysis) with the use of electricity from renewable non-biological sources. The reduction target must be at least 70% of the Comparator Value (94 g CO2-eq/MJ) as specified in RED II.

Low Carbon Hydrogen addresses all hydrogen production routes and therefore enables all technologies and processes to be subjected to certification. The reduction target must be at least 70% of the Comparator Value (94 g CO2-eq/MJ).

Carbon neutral Hydrogen can be considered when all emissions caused by the production of Hydrogen are compensated. This involves offsetting mechanism through purchasing and retiring registered CO2 reduction certificates from internationally recognized climate protection programs and/or emission rights from established trading systems.