The new implementation guide provides large and small system integrators with key understandings on how to specify and test desktop PC, notebook PC, workstation computer and desktop derived server configurations that can best meet the required power levels of the new specification.
ENERGY STAR is a joint program of the EPA and the U.S. Department of Energy that is designed to save businesses and consumers money while protecting the environment through the design and promotion of energy-efficient products and practices.
You can find the new guidelines over here.