Technical report describing the U.S. Department of Energy's (DOE) assessment of the performance and cost of compressed hydrogen storage tank systems for automotive applications. The on-board performance (by Argonne National Lab) and high-volume manufacturing cost (by TIAX LLC) were estimated for compressed hydrogen storage tanks with design pressures of 350 bar (~5000 psi) and 700 bar (~10,000 psi) capable of storing 5.6 kg of usable hydrogen. The system performance and high-volume manufacturing costs were estimated for both type III and IV tanks in both single and multi-tank configurations for each design pressure. The results were compared to DOE's 2010, 2015, and ultimate full fleet hydrogen storage targets. The Well-to-Tank (WTT) efficiency as well as the off-board performance and cost of delivering compressed hydrogen were also estimated and documented in the report.