(NAFB.com) – A bipartisan group of 18 Senators sent a letter to Environmental Protection Agency Administrator Michael Regan encouraging the agency to complete 2026 RFS rules and raise RFS volumes. They want higher volumes for biomass-based diesel and advanced biofuels to levels that are consistent with production and availability. The letter points to the discouraging market signal EPA sent with the 2023-2025 volumes and the negative impact on local economies and jobs in the clean fuels industry. “Biofuels play a critical role in emissions reduction for heavy-duty transportation, including aviation, shipping, rail, and trucking, while opening up economic opportunities for American farmers,” the letter says. “A strong RFS and availability of homegrown agricultural feedstocks bolster the domestic fuel supply and are critical for keeping up the progress we’ve made in decarbonizing our roads, seas, railways, and skies.” Kurt Kovarik of Clean Fuels Alliance America says the EPA must act in a timely manner.