The Agricultural Biorefinery Innovation and Opportunity Act of 2025 aims to enhance support for the development of biorefineries, renewable chemicals, and biobased products. Its main objective is to promote the production of advanced biofuels and other sustainable products, thereby fostering innovation and economic growth in the agricultural sector. Key provisions of the Act include several updates to existing assistance programs. It expands the definition of eligible projects to include ultra-low-carbon and zero-carbon bioethanol, as well as renewable chemicals and biobased products.