[en] This document gathers several sheets which propose detailed regulatory and legal information about various aspects of the hydrogen sector. It indicates and comments arrangements to be taken into account and which are specified in the Code of the Environment and other regulatory or legal documents. More precisely, it addresses the following topics: Hydrogen production (from design to final stoppage, transverse regulatory aspects related to labour law, pressurised equipment or town planning), Storage of renewable energies (from design to final stoppage, gas and hydrogen pipelines, other concerned regulations), Hydrogen storage (from design to stoppage, other concerned regulations), Hydrogen transport (transport of hazardous materials, customs and taxes, gas and hydrogen pipelines, other regulations), Hydrogen station (from design to stoppage, other concerned regulations), Hydrogen usages (from design to stoppage, transport and injection into the network, other concerned regulations, gas installations in housing buildings), and Vehicle fleet (regulations related to vehicles, other concerned regulations)