The purpose of this guide is to assist users of codes and standards that apply to hydrogen application and use in understanding and applying the approval, certification, listing, and labeling provisions of the codes and standards, in any application where the required certification, listing, and labeling of services, methods, or equipment has not yet been established or achieved.
Safe practices in the production, storage, distribution, and use of hydrogen are essential for developing hydrogen and fuel cell technologies. Codes and standards applicable to the design, fabrication, installation, and operation of facilities, systems, equipment, and components for the production, storage, distribution, and use of hydrogen are important to establishing these safe practices, and although codes and standards have been developed for hydrogen use, hydrogen’s use in fuel cells and associated fuel storage, distribution, and dispensing systems is still relatively new. These new hydrogen technologies and the associated knowledge base for safe practices are rapidly and continuously evolving, and the knowledge, methods, and equipment for satisfying the code and standard requirements for approval, certification, listing, and labeling are not yet well established or understood.