CNN Money has the story :
NEW YORK (CNNMoney) -- The so-called light bulb ban, set to begin in 2012, has become a rallying point for conservatives, libertarians, and various free-market activists who deride what they see as unnecessary government interference in the marketplace.
A bill calling for light bulbs to become gradually more efficient beginning in 2012 and ending in 2020 -- what critics are calling a ban -- passed in 2007 with bipartisan support and was signed into law by then-President George W. Bush.
Because of those higher standards, traditional bulbs will probably be phased out, to be replaced with more efficient incandescent bulbs, compact fluorescents and LEDs.