| Fuel Type | Description / Biofuel Content | Primary U.S. Feedstocks | Relevant RFS Category (D-Code) |
| E15 | Gasoline with up to 15% ethanol | Corn Starch | Conventional (D6) |
| E85 | Gasoline with 51-83% ethanol (for FFVs) | Corn Starch | Conventional (D6) |
| B20 / Biomass-Based Diesel | Diesel with up to 20% biodiesel/renewable diesel | Soybean Oil, Other Vegetable Oils, Animal Fats, Used Cooking Oil, Corn Oil (byproduct) | Biomass-Based Diesel (D4), Advanced (D5) |
Current U.S Secretary of Agriculture Brook Rollins said “Through HBIIP, we will expand access to domestic, homegrown fuels which will increase good paying jobs for hardworking Americans, restore rural prosperity and strengthen our nation’s energy security.” The announcement also stated that the USDA is “aggressively exploring” new strategies to boost American energy and encourage the production and use of homegrown U.S. biofuels.
This funding comes at a time when there is growing attention and momentum around E15. On February 13, 2025, U.S. Senator Deb Fischer reintroduced a bill called the Nationwide Consumer and Fuel Retailer Choice Act of 2025 which would allow year round sales of E15. On March 6, 2025, the National Corn Growers Association (NCGA) delivered a letter signed by nearly 9,000 corn growers, urging the House and Senate to pass legislation allowing year-round access to E15. The letter stated “Standardizing year-round E15 will result in an increase in corn demand of about 2.3 billion bushels per year,” and “Considering that about one-third of corn produced in the U.S. is used for ethanol production, this demand creation will result in an impressive improvement in profitability for operations across the nation – and rural communities will reap the benefits.”
At RINSTAR, we’ve been closely monitoring developments in the Renewable Fuel Standard (RFS) for over 15 years. We’re dedicated to helping you stay informed about key updates and policy changes. To stay up to date, we encourage you to sign up for our newsletter and check out our other blog posts.