UCI CYCLING REGULATIONS  1.3.058 The advertising spaces shall be reserved for the use of the national federation except  in the following cases:  1.3.059  The wearing of national team clothing shall be mandatory:  -  at world championships  -  at continental championships  -  for the riders of a national team  -  during Olympic and Paralympic Games, in accordance with the IOC and  NOC Regulations.  1.3.060 The right to the «rainbow colours» is the exclusive property of the UCI.  Any commercial use of the rainbow colours is strictly prohibited.  1.3.061 The design, including colours and layout, of each world champion's jersey according to  category and/or discipline, as well as the distinctive logo of the UCI Team Time Trial  World Champions, are the exclusive property of the UCI. The jersey, and the distinctive  logo for the UCI Team Time Trial World Champions, may not be reproduced without UCI  authorisation. The design may in no way be modified.  1.3.062 [article abrogated on 01.01.05]  1.3.063 World champions must wear their jersey in all events in the discipline, speciality and  category in which they won their title, and no other event, until the evening of the day  before the commencement of the next edition of the world championships of said  discipline, speciality and category.  The world champion in the individual time trial is not authorised to wear the world  champion’s jersey during team time trial events.  (text modified on 01.10.10; 01.07.12)  (text modified on 01.10.10)  (text modified on 01.01.98; 01.01.04; 01.01.05; 01.01.06; 01.10.10; 26.07.17)  The continental and national champions must comply with this rule and wear their  national team clothing while participating in the events cited here before.  (text modified on 17.07.98; 01.01.05; 14.10.08; 19.06.09; 01.07.18; 04.03.19; 08.02.21)  All details regarding the advertising, logos and UCI permanent number are described in  the “UCI jerseys visual guidelines” brochure published on the UCI Website  A. track world cup [abrogated on 04.03.19]  A. cyclo-cross world cup  [text transferred to the article 5.3.010]  B. BMX world and continental championships and challenges  § 6  World champion's jersey  E0221  GENERAL ORGANISATION OF CYCLING AS A SPORT  78 