The goal of WP4 is to provide a comprehensive definition of a new framework of GoO for “green” hydrogen. As a first step, the results from WP2 and WP3 will fed into WP4, to enable the definition of technical specifications of the framework of guarantees of origin.

The work package will also define a set of rules and obligations for the GoO including: methodology and certification process, agencies involved, enforcement and controlling processes, transfer and use process, legislative, normative and regulatory aspects, etc. An impact analysis will be performed to evaluate the impacts related to the implementation of the GoO of "green" hydrogen that will focus on regulatory, legislative and economic aspects. Finally, the second consultation with Affiliated Partners and other relevant stakeholders will be set up in WP6 and performed in WP4 in preparation for the following work package.