The Environmental Protection Agency (EPA) sent its proposed Renewable Fuel Standard Volume Obligation Rule to the Capitol. The proposal could take up to 90 days to review.
Several groups responded, including the National Biodiesel Board, which says it is pleased to see the process moving forward.
The content has not yet been made public.
The EPA says the organization received more than 340,000 comments on the proposal. A statement released last week states the EPA believes biofuels are an important part of curbing dependence on foreign oil and cutting carbon pollution.
After the review process is completed, EPA will issue a final rule-making.