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On December 19, 2007, President George Bush signed into law the Energy Independence and Security Act (EISA) that established the set of standards for common incandescent light bulbs requiring them to use about 25% to 30% less energy than today’s lamps—and at least 60% less energy by 2020.

Specifically, EISA mandates a phase out of the least efficient general service incandescent lamps through a combination of wattage caps and minimum efficiency performance standards. These phase outs begin January 1, 2012 (referring to date of manufacture) for lamps with higher lumens and wattage, and they progress until 2014.

The comprehensive EISA also includes increased fuel efficiency standards for new automobile fleets (to 35 mpg by 2020), updated efficiency standards for electric motors, and requirements for federal agencies to reduce their energy consumption by 30% by 2015. (Today's Facility Manager, August 2011)