From the play-offs, only the approved sponsors may appear on attire.
Clubs may change their attire sponsors during the season as follows:
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a club that participates in the play-offs may change each attire sponsor no more than twice during the same UEFA season and only once from the beginning of the league phase;
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a club that qualifies directly for the league phase may change each attire sponsor only once during the same UEFA season.
Starting the competition without a sponsor but subsequently using one is not considered as a change of sponsor.
A change regarding the content of sponsor advertising is considered to be a change of sponsor, even if the sponsor remains the same.
If a club wants to change its attire sponsor, it must submit a request to the UEFA administration at least seven working days prior to the first match in which it wishes to use the new sponsor, accompanied by the items defined in the UEFA Equipment Regulations.
Clubs that have qualified for the knockout phase must announce any change of attire sponsor to the UEFA administration by 6 February 2025 (12:00 CET) at the latest. No change of sponsor is permitted after this time.