Football's rule-making body agreed Wednesday to reopen discussions on the use of goal-line technology in the wake of mistakes at this year's World Cup.
The International Football Association Board said it will test out prototype systems submitted before the end of next month and discuss the results at its March 4-6 meeting, at which it is able to change the game's laws.
After reviewing the 13 systems proposed so far, IFAB laid out the criteria the technology must meet for it to be further considered for implementation.
''The indication of whether a goal has been scored must be immediate and automatically confirmed within one second,'' IFAB said.
IFAB is only considering technology to aid referees in deciding whether a ball has crossed the goal line and will not look at systems that, for example, rule on whether a ball has gone out of play elsewhere.
Only match officials will be able to receive the information and IFAB said the system ''must be accurate.''
FIFA president Sepp Blatter reopened the debate on technology after mistakes at the June 11-July 11 World Cup in South Africa helped eliminate England and Mexico.
