When Copa America starts on June 3, it will incorporate goal line technology in the form of Hawk-Eye's camera-based system.
The Copa Local Organizing Committee selected Hawk-Eye, which is already in use in several leagues, and was used last summer in the 2015 Women's World Cup.
Goal line technology was also used in the 2014 Men's World Cup, although that was a different company, GoalControl-4D.
Hawk-Eye puts cameras around the goal and connects them to tracking software to indicate whether or not the whole ball has crossed the line. If a goal is scored, then the system sends a signal to the referee's watch.