Alternative Fuel Use: Procurement under 42 U.S.C. § 17142 says that agencies are prohibited from procuring synfuel unless its life cycle greenhouse gas (GHG) emissions are less than those for conventional petroleum sources.
No Federal agency shall enter into a contract for procurement of an alternative or synthetic fuel, including a fuel produced from nonconventional petroleum sources, for any mobility-related use, other than for research or testing, unless the contract specifies that the life cycle GHG emissions associated with the production and combustion of the fuel supplied under the contract must, on an ongoing basis, be less than or equal to such emissions from the equivalent conventional fuel produced from conventional petroleum sources.