According to a recent Window & Door article “a number of window, door and skylight executives sent a joint letter yesterday to all members of Congress urging them to pass a temporary extension of the energy efficient tax credit for windows, doors and skylights during the current lame duck session.” You can read the entire article at Window & Door “http://www.windowanddoor.com/news-item/government/manufacturing-execs-ask-congress-extend-tax-credits” which outlines how the current tax credits on windows, doors and skylights will end after December 31st 2010 if no action is taken.