Goal-line technology is a method used to determine when the ball has slightly crossed the goal line with the assistance of electronic devices and at the same time assisting the referee in awarding a goal or not. The objective of goal-line technology (GLT) is not to replace the role of the officials, but rather to support them in their decision-making. The GLT must provide a clear indication as to whether the ball has fully crossed the line, and this information will serve to assist the referee in making his final decision.[2] In the wake of controversial calls made in the Premier League, 2010 World Cup and the Euro 2012, FIFA (previously against the technology) tested potential candidates for goal-line technology. Nine systems were initially tested, but only two remain.
On 5 July 2012, the International Football Association Board (IFAB) officially approved the use of goal line technology.