Although not confirmed by any official sources, multiple sites are reporting that a change in Energy Stars conditions could affect Apple's current line-up of computers.
Energy Stars new conditions came into effect on July 20, the conditions aim to encourage use of more efficient power supplies and CPUs and as well as enhanced sleep modes.
According to reports only 125 computers on sale in the US meet the new standards, but it is noted that computers that no longer comply can still be sold as normal but some companies and government agencies may refuse to buy said products.
The changes come as a particular blow to Apple as it appears that none of its computers meet the new requirements. Apple has recently been trying to portray itself as a green company.
[Update] - After some further research Energy Star's website reads that the new specification was revised in October 2006 due to come into effect on July 20. The new specification rating is Version 4.0.
The ENERGY STAR specification for computers was revised on October 20, 2006 to Version 4.0. The specification includes new performance requirements to qualify for the ENERGY STAR rating for desktop and notebook computers, workstations, integrated computers, desktop-derived servers and game consoles. Tier 1 of this specification went into effect on July 20, 2007.
Apple's website writes that all Apple products meet the new Energy Star rating.
Apple’s products are designed to minimize energy consumption and meet requirements set by FEMP and Top-Runner. Apple products designed to meet ENERGY STAR conform with the requirements set out in the stricter Energy Star 4.0 version covering portables, desktops and workstations.