Describes specification requirements for commercially available gaseous and liquid hydrogen. Presents data on quality verification, sampling, analytical procedures, typical uses for various grades (QVLs) including recommendations for use of liquid grades A, B and C and gaseous hydrogen grades F and L for use for Fuel Cell applications. Includes guidance for sampling at the dispenser and guidance for station operators on how to manage impurities with respect to the limits of SAE J2719. Includes supplemental tables. This document is harmonized with the SAE fuel specification, SAE J2719