When the International FA board meets on March 3rd there are some interesting proposals to consider:1) Allow a 4th substitute in games that go into extra time, “in order to maintain the technical level until the 120th minute and to protect the health of the players.”2) EIGHT different goal-line technology systems to be discussed with a view to taking one to further discussions.3) The board will also be looking at the five-referee system, with additional assistants beside each goal.As discussed here recently, the board will also consider amending the “triple punishment” of sanctioning certain fouls with a penalty kick, red card AND a suspension.Tests at the 2011 Copa America, where referees used short-life spray on the grass to mark the 10 yards for defensive walls at free-kicks will also be studied.If any changes are sanctioned they would normally take effect on 1 July. Any changes would need six of the eight available votes. Each British association (England, Scotland, Wales and Northern Ireland) has one vote and FIFA officials have four.