UCI CYCLING REGULATIONS  In six-day races, only madison world champions may wear the jersey, even if they are  not paired together.  In para-cycling, for Tandem (B), Team Relay (TR) and Team Sprint (TS), only world  champion athletes must wear the rainbow jerseys even if the pair or the team  subsequently dissolve.   In track races, in Madison, if one of the teammates is not World Champion, then both  riders shall wear the same team jersey or one World Champion jersey with one plain  white jersey.  In non-individual events in Indoor Cycling, if one of the teammates is not World  Champion, then no rider shall wear the World Champion jersey.  In Cycling Esports the UCI defines the World Champion jersey as having two states; 1)  physical and 2) virtual. As such, the rainbow jersey must be worn in Cycling Esports  events (physical state), both In-real life and remote races, and In-game by means of a  digital avatar (virtual state). The obligation to wear the World Champion jersey in virtual  state remains subject to the creation of such a digital avatar by the respective Cycling  Esports platforms  The world champion jersey must be worn at every opportunity with public exposure, in  particular during competitions, awards ceremonies, press conferences, television  interviews, autograph sessions, photo sessions and other occasions.  (text modified on 01.01.05; 01.01.06; 01.10.10; 01.07.12; 01.10.13; 04.03.19; 11.02.20;  08.02.21)  1.3.064 Without prejudice to paragraph 2 below, only the current world champion rider may  wear rainbow piping on his equipment (such as bike, helmet, shoes) as per the  technical specifications in the “UCI jerseys visual guidelines” brochure published on the  UCI Website. However, he may use the equipment bearing the rainbow piping only in  events of the discipline, speciality and category in which he won the title and in no  other event.  The current individual time trial world champion is authorised to use rainbow stripes on  their time trial bicycle for individual time trial and team time trial events.  When he no longer holds the title of world champion, a rider may wear rainbow piping  on the collar and cuffs of his jersey, to the exclusion of any other equipment, as per the  technical specifications in the “UCI jerseys visual guidelines” brochure published on the  UCI Website. However, he may wear such a jersey only in events of the discipline,  speciality and category in which he won the title and in no other event. In compliance  with the provisions 1.3.056 and 1.3.059, he is not authorized to add the rainbow piping  on his national team clothing.  Any equipment bearing the rainbow piping shall be submitted to UCI for approval before  production.  (text modified on 01.01.05; 01.09.05; 24.09.07; 01.10.10; 01.01.15; 08.02.21)  1.3.065 [article abrogated on 01.07.17] 1.3.066 The world champion's jersey awarded at the official ceremony may carry no advertising  matter other than that determined by the UCI.  E0221  GENERAL ORGANISATION OF CYCLING AS A SPORT  79 