Vehicle range on a single tank of hydrogen is critical for the economic viability of hydrogen fueled vehicles. A range of 500 kilometers is projected for economic viability and this requires the storage of 4 kg of H@sub2@. Compressed H2 tanks with a capacity of about 2 kg of H@sub2@ stored at 350 bar of pressure have been certified while tanks with higher capacity stored at 700 bar are being developed. Liquidified H2 tanks can store more H@sub2@ in a vehicle than compressed H@sub2@ but liquifying H@sub2@ requires considerable energy and boil-off of the liquid H@sub2@ is a concern, especially in enclosed spaces. Storage of H@sub2@ in bulk hydrides or on the surface of carbon or boron nitride nanotubes are attractive because of the low pressures involved. Recent studies have shown that NaAlH@sub4@ can be reversibly charged and discharged with H2 100’s of times but the capacity of this hydride material is only about 1/2 of that needed. Storage of H2 on the surfaces of carbon nanotubes has shown great promise but verification of the storage capacities has not occurred. However, carbon nanotubes have the potential to store about 80% of the desired quantity of H@sub2@ so it remains a viable storage material. Generation of H@sub2@ by chemical reaction of a hydride such as LiH with water to produce H@sub2@ is also attractive because of the significant amounts of H@sub2@ that can be generated by this process. The key issues for this process of generating H@sub2@ is the need to reprocess the reaction products and the cost associated with transportation and reprocessing this product. There are several options for storing hydrogen on-board a vehicle but as summarized above considerable development work is needed before the hydrogen economy can be realized. Critical materials issues associated with H@sub2@ storage will be presented.