Balls must comply with the IFAB Laws of the Game as well as with the UEFA Equipment Regulations.
For qualifying competition matches, as well as for training sessions, balls of excellent quality must be provided by the host association. A minimum of 18 balls of the same type and quality as those used for the matches must be provided to each participating association for training.
For matches and training sessions during the final tournament, balls are supplied by UEFA.
The use of two-sided substitution boards (preferably electronic) is compulsory for all matches. For each match a minimum of two boards must be provided by the host association.