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The new and revolutionary goal-line technology is employed during the 2014 World Cup , after years of debate and controversial decisions by the referees.
The announcement came from football's governing body FIFA in February 2013.
"After a successful implementation of goal-line technology (GLT) at the Club World Cup in Japan in December 2012, FIFA has decided to use GLT at the Confederations Cup Brazil 2013 and 2014 World Cup," FIFA said in a statement.
"The aim is to use GLT in order to support the match officials and to install a system in all stadia, pending the successful installation, and pre-match referee tests."
However, referees will still have the final say on the decisions, the body said.