The applicable Laws of the Game govern the footballs used in UEFA competitions.
Manufacturer identification is allowed as follows:
One type, not exceeding 50cm²; or
Two types, neither exceeding 25cm².
The name of the football may be displayed once and must not exceed 30cm².
The name and logo of the competition may each appear twice but neither may exceed 50cm².
UEFA reserves the right to add its own marks and logos and/or the UEFA competition marks.
The host team must ensure the availability of a sufficient number of brightly coloured "winter" balls if the climatic conditions indicate their use may be necessary (e.g. should snow, fog be forecast).