Goal-line technology has moved a significant step closer after the International FA Board today agreed to re-examine the issue.
IFAB's business meeting in Wales ended with members - made up of FIFA and the four British home associations - agreeing to look again just seven months after the game's law-making body ruled it out.
A statement said: 'The technology would apply solely to the goal line, and only to determine whether a goal has been scored or not.
'The system must be accurate; the indication of whether a goal has been scored must be immediate and automatically confirmed within one second; the indication of whether a goal has been scored will only be communicated to the match officials.'
A deadline of the end of next month has been set for companies to make a first presentation of their technologies to FIFA.
A testing period will then take place with a number of companies to determine the accuracy of each system and this will be reported back to the IFAB annual general meeting on 5 March.