Computing Advancements for Materials Science Act or the CAMS Act This bill directs the Department of Energy (DOE) Office of Science to support a program of fundamental research for the application of advanced computing practices to foundational and emerging research problems in chemistry and materials science. The DOE Office of Science shall select and establish up to four computational materials and chemistry science centers to develop open-source, robust, and validated computational codes and user-friendly software, coupled with innovative use of experimental and theoretical data, to enable the design, discovery, and development of new materials and chemical systems including chemical catalysis research and development. The DOE Office of Science shall support the development of a web-based platform to provide access to a database of computed information on known and predicted materials properties and computational tools to accelerate breakthroughs in materials discovery and design.