I have a company putting is a large Hydrogen tank outside. They use it for a coating process. The process booth has hydrogen detection and ventilation. The question is, does the rest of the building since it contains the piping from the exterior to the booth have to have detection monitoring? It seems the code is all over From IFC to Mi BuildingCode to mechanical to NFPA. I am IFC 2015 in Michigan. The State is doing a review for the tank farm. I’m trying to figure out along with the mechanical inspector what is required for interior. Any help and code references would be greatly appreciated.