The Clarus Initiative, a joint effort of the U.S. Department of Transportation Intelligent Transportation Systems (ITS) Joint Program Office and FHWA’s Road Weather Management Program (RWMP), is a six-year effort to develop and demonstrate an integrated weather observation data management system that can reduce the impact of adverse weather conditions on surface transportation. As part of that effort, the RWMP conducted two Clarus multistate regional demonstrations involving five use cases to test deployment of Clarus enabled services. As a complement to these very structured demonstrations, the U.S. Department of Transportation issued a Broad Agency Announcement (BAA) to fund the development of many other innovative applications that use Clarus data. Eight projects were awarded and they are summarized below.