United States. Congress, Energy Independence and Security Act of 2007…
“ IN GENERAL—Not later than 1 year after the date of enactment of this clause, the Commission shall initiate a rulemaking to consider— ` (aa) the effectiveness of current lamp labeling for power levels or watts, light output or lumens, and lamp lifetime; and ` (bb) alternative labeling approaches that will help consumers to understand new high-efficiency lamp products and to base the purchase decisions of the consumers on the most appropriate source that meets the requirements of the consumers for lighting level, light quality, lamp lifetime, and total lifecycle cost. ”
