Its not listed specifically, but as a part of the fuel system it would be looked at in the same way as the rest of the fuel system, security and for any leaks
Please could you let me know what the rules and regulations concerning hydrogen-on demand systems are? I am interested in fitting a system using a electrolyzer to improve gas mileage and reduce emissions, but would like to see the rules etc regarding the above mentioned item. Thank you for any assistance you can give me - A. Mirwald