Notes and modificationsReference to additional permanent concussion substitutions is found in:·Page 39, 2026/27 edition

Reference to additional permanent concussion substitutions is found in:

The provision as it is printed, and everything on Ruleside that turns on it.

· If a team decides to make a ‘concussion substitution', the referee/fourth official is informed, ideally by using a substitution card/form of a different colour.
IFAB Laws of the Game 2026/27, page 39 · clause law-x-1efdf555

Verdicts that turn on it 1

Walk the tree to any of these and this clause is part of the answer.

At any point a concussion occurs or is suspectedprotocols

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