The balls for the match and the official training sessions prior to the match are supplied by UEFA and must be used to the exclusion of any other balls.
The use of two-sided substitution boards (preferably electronic) is compulsory.
Goal-line technology (GLT) is used in accordance with the IFAB Laws of the Game and the FIFA Quality Programme for Goal-Line Technology Testing Manual in the competition for the purpose of verifying whether a goal has been scored to support the referee’s decision. That decision remains under the sole discretion of the referee and is final.
A failure of the GLT system may in no way prejudice the decision of the referee. If necessary, for example in case of a system failure, matches will take place or continue without the use of GLT.