The Hydrogen Effects on Materials Laboratory is the cornerstone of Sandia’s research expertise in hydrogen compatibility of materials and a core capability stewarded by the Office of Energy Efficiency and Renewable Energy’s (EERE) Fuel Cell Technologies Office at the Department of Energy. The laboratory houses specialized assets for evaluating materials performance in high-pressure gaseous hydrogen including fracture and fatigue testing in high-pressure gaseous hydrogen and at temperature, crack growth testing, pressure cycling in a controlled temperature, and thermal precharging.