The Materials Genome Initiative (MGI) is a multi-agency effort led by the Department of Energy, National Science Foundation, National Institute of Standards and Technology, and other agencies to reduce the time to develop and deploy new materials by 50% while reducing costs. The goal is to develop a materials innovation infrastructure through improved data sharing and predictive models to achieve national goals in energy, security, and human welfare. Key aspects of MGI include developing repositories of high-quality, shared data and predictive models that span multiple length and time scales from the quantum to the macro level to enable the accelerated discovery and design of new materials with targeted properties.