According to IFAB, that includes helping referees with "game-changing" decisions such as penalty calls, direct red card incidents and, of course, goals. While trials are expected to begin early next year, FIFA and IFAB won't decide if the Video Assistant Referees (VARs) system will be a permanent fixture until 2018 or 2019. What's more, as part of the wider testing, live experiments are going to be conducted around the world.
Major League Soccer will participate in these tests (its wish came true), as is the case for Germany's Bundesliga, Australia's Hyundai A-League and several competitions under the Brazilian, Dutch and Portuguese football federations. Not a bad start.
Update: We received a statement from MLS Commissioner Don Garber:
Major League Soccer has been a strong proponent of using technology in soccer where it enhances the game, and we are pleased to be among the first leagues in the world to participate in the Video Assistant Referee project.
We believe the time has come for a mechanism that helps referees avoid clearly incorrect decisions that change the game. We look forward to working with The IFAB and FIFA to test video assistance for our referees.