Agricultural Biorefinery Innovation and Opportunity Act of 2025

This bill expands federal support for biorefineries producing advanced biofuels (including ultra-low-carbon and zero-carbon bioethanol), renewable chemicals, and biobased products. It establishes a new competitive grant program (up to 60% of project costs) for pilot/demonstration-scale facilities, with funding capped at $40 million annually for fiscal years 2025-2029. Projects are evaluated based on market potential, innovation, environmental benefits, rural economic development, and feasibility, with priority given to those using novel feedstocks or technologies. The program directly affects biorefinery developers, manufacturers of renewable chemicals, and biobased product companies seeking federal support for commercial-scale demonstration projects.