The U.S. government plans to require federal agencies to buy PCs and computer monitors that are energy efficient and include reduced levels of toxic chemicals -- a requirement that likely will affect corporate users as well because of the government's massive buying power, according to a recent article in Computerworld.

The Department of Defense, NASA and the General Services Administration jointly detailed an interim rule on the new purchasing requirements in a notice published in the Federal Register on Dec. 26, and they are accepting comments on the proposal through Feb. 25. The new rule formalizes the use within the government of the Electronic Product Environmental Assessment Tool, which some agencies and private-sector companies have already adopted.

EPEAT is a three-tiered rating system developed by the Green Electronics Council in Portland, Ore. Under EPEAT, qualifying desktop systems, laptops and monitors are awarded gold, silver and bronze ratings based on how well they meet 51 environmental criteria, such as ease of disassembly and the lack of paints or coatings that aren't compatible with recycling or reuse.