There’s no clear fitting product standard for the safe design and construction of compressed and liquefied natural gas vehicle fuel and fueling systems. You need a trusted advisor with knowledge of the issues to guide you through the component selection process based on your objectives and needs. Someone like SSP with technical experts from this industry on staff. Someone who manufactures products which have been tested to requirements of NGV 3.1, 4.6, and ECE R110. Someone with capability to provide PPAP certification and perform additional validation testing on your systems in an ISO 17025 laboratory environment. Someone like SSP.