<P> The Tribute in Light initially ran as a temporary installation from March 11 to April 14 , 2002 , and ran again on September 11 , 2003 to mark the second anniversary of the attack . Since then , it has been repeated every year on September 11 . It was announced that 2008 would be its final year , but the tribute was continued in 2009 . </P>
<P> The Tribute in Light initially ran as a temporary installation from March 11 to April 14 , 2002 , and ran again on September 11 , 2003 to mark the second anniversary of the attack . Since then , it has been repeated every year on September 11 . It was announced that 2008 would be its final year , but the tribute was continued in 2009 . </P>
when do the twin tower lights come on
when do the twin tower lights come on
every year on September 11
every year on September 11