10 C.F.R. § 436.41
Agency means each authority of the Government of the United States, whether or not it is within or subject to review by another agency, but does not include-
(1) The Congress, and agencies thereof;
(2) The courts of the United States;
(3) The governments of the territories or possessions of the United States; or
(4) The government of the District of Columbia.
Covered product means a product that is of a category for which an ENERGY STAR qualification or FEMP designation is established.
ENERGY STAR qualified product means a product that is rated for energy efficiency under an ENERGY STAR program established by section 324A of the Energy Policy and Conservation Act (42 U.S.C. 6294a ) .
FEMP designated product means a product that is designated under the Federal Energy Management Program as being among the highest 25 percent of equivalent products for energy efficiency.
10 C.F.R. §436.41