What does the Energy Policy Act of 2005 mandate?

The Energy Policy Act of 2005 (H. R. 6) was signed into law by President Bush on August 8, 2005, the first major piece of federal energy legislation since the Energy Policy Act of 1992. Minimum renewable fuels standards (RFS) are mandated for most refiners, blenders, and importers of gasoline.

It is an attempt to combat growing energy problems, changed US energy policy by providing tax incentives and loan guarantees for energy production of various types.