AFDC - Ethanol Standards, Codes, and Legislation Ethanol Fuel Standards, Codes, and Legislation Standards and Codes Ethanol for fuel use must be denatured by Federal mandate.
Denaturants used in industry vary in types and amounts.
Different denaturants will affect driveability and durability of the vehicle. With EPAct in place, DOE's primary goals are to decrease the nation's dependence on foreign oil and increase energy security through the use of domestically produced alternative fuels. EPAct mandates federal, state, and alternative fuel provider fleets to purchase AFVs. Visit the Federal Fleets page to learn more about this program.