This bill mandates the Under Secretary of Commerce for Oceans and Atmosphere to conduct a project aimed at significantly improving forecasts of coastal marine fog. The overarching goal is to enhance vessel safety and reduce the economic impact of marine fog events. This initiative will focus on increasing marine-based observations and advancing the accuracy and geographic coverage of marine fog modeling. Key provisions include utilizing diverse observation platforms such as buoys, meteorological stations, and unmanned systems, alongside advanced remote sensing technologies and algorithms for early detection. The project also seeks to improve the communication of marine fog advisories by the National Oceanic and Atmospheric Administration, ensuring risks are conveyed effectively for informed public decision-making. Furthermore, the Under Secretary must engage with public, private, and tribal stakeholders in the planning and implementation of this vital project. A comprehensive project plan detailing research, development, and technology transfer activities is required within one year of enactment.