H.R.5656: To repeal a requirement with respect to the procurement and acquisition of alternative fuels.

Amends the Energy Independence and Security Act of 2007 to repeal provisions prohibiting any federal agency from entering into a contract for procurement of an alternative or synthetic fuel for any mobility-related use, other than for research or testing, unless the contract specifies that the lifecycle greenhouse gas emissions associated with the production and combustion of the fuel must be less than or equal to such emissions from the equivalent conventional fuel.