Record US biofuel targets to test biodiesel industry after slow year

• Monthly credit generation reached only 651 million in March versus the 915 million needed, with experts warning of 'big deficits' building into 2027
• The EIA forecasts combined 2026 supply of 5.05 billion gallons (1.52 billion biodiesel + 3.53 billion renewable diesel), falling short of the 5.4 billion gallon requirement
• Despite 6.85 billion gallons of total operable capacity, actual 2025 production was only 2.9 billion gallons, with industry citing feedstock supply constraints, tariff-driven construction costs, and uncertainty over the 45Z clean fuel credit program as barriers to expansion

Summary: Record US Biofuel Targets Challenge Biodiesel Industry

The U.S. biodiesel industry faces significant challenges meeting the EPA's record-high biofuel blending mandates announced in late March 2026. The EPA set biodiesel and renewable diesel volume requirements at 5.4 billion gallons for 2026 and 5.7 billion gallons for 2027, up from 3.35 billion gallons in 2025—requiring over 60% production increase.

Key Figures:

• EPA estimates 6.07 billion gallons of actual supply needed in 2026 to meet obligations
• March 2026 biodiesel credits (D4) reached 651 million, up from 481 million in February
• Required monthly credit generation: 915 million (per University of Illinois economist Scott Irwin)
• EIA forecasts only 5.05 billion gallons combined supply (1.52B biodiesel + 3.53B renewable diesel) for 2026—below EPA requirements
• 2025 actual production: just 2.9 billion gallons despite 6.85 billion gallons of operable capacity

Industry Response:

Iowa producers, representing 23% of U.S. biodiesel production, are restarting idled plants. Minnesota Soybean Processors brought its Brewster facility online within a week, targeting 35 million gallons output versus 25 million in 2025.

Major Challenges:

• Steel and aluminum tariffs increasing construction costs
• Logistical and labor bottlenecks limiting capacity expansion
• Feedstock supply concerns expected by Q4 2026
• Uncertainty around 45Z clean fuel credit program
• Industry needs 85-90% capacity utilization across all facilities

Market Implications:

Failure to meet targets could force refiners to draw on RIN (Renewable Identification Number) credit banks, potentially raising compliance costs and diesel prices at the pump. The mandates come amid geopolitical tensions with fuel prices already elevated due to the U.S.-Israeli war on Iran.