Transportation Fuels

What is a Fuel Pathway?

What is a Fuel Pathway?

Three critical components make up a renewable fuel pathway: (1) inputs, such as a feedstock, (2) a production process, and (3) the fuel type. The EPA assigns one or more D codes representing the type of Renewable Identification Number (RIN) once it qualifies the pathway (examples include renewable fuel, advanced biofuel, biomass-based diesel).