Carriers participating in modernized Connect America Fund (CAF) programs with defined fixed broadband buildout obligations have until March 2, 2026, to file and certify deployment data with USAC’s High Cost Universal Broadband (HUBB) portal showing where they built out mass-market, high-speed Internet service in calendar year 2025 or certify that they have “no locations to upload.” This includes carriers participating in the Rural Digital Opportunity Fund (RDOF), Bringing Puerto Rico Together (Uniendo a Puerto Rico) Fund and the Connect USVI Fund (PR/USVI Funds) and the Enhanced Alternative Connect America Cost Model (Enhanced ACAM) program, which will be reporting deployment data in the HUBB using location IDs from the Broadband Serviceable Location Fabric (Fabric), a single, standardized dataset of all locations in the U.S. where fixed broadband access service is available or could be installed. This webinar provides an overview of the HUBB filing requirements and a walkthrough of the system and an explanation of the HUBB filing process for RDOF, PR/USVI and Enhanced ACAM carriers.