UCI CYCLING REGULATIONS  12.  the two commissaire’s motorcycles  13.  the two photographers’ motorcycles  14.  the regulator(s)’ motorcycle(s);  15.  the two information motorcycles  16.  the doctor’s motorcycle  17.  the time board motorcycle  18.  the police motor-cycles.  19.  the broom wagon  Vehicles must circulate according to the diagram of the race convoy of article 2.3.047.  (text modified on 1.01.02; 30.01.04; 1.01.05, 1.01.08; 1.08.13; 1.05.17).  2.3.024 During world championships, the order of the nations’ vehicles shall be determined as  follows:  1. vehicles of nations entering nine riders;  2. vehicles of nations entering seven to eight riders;  3. vehicles of nations entering fewer than seven riders grouped according to the  number of riders entered.  1. vehicles of nations entering at least six riders;  2. vehicles of nations entering less than six riders grouped according to the  number of riders entered.  1. vehicles of nations entering at least five riders;  2. vehicles of nations entering less than five riders grouped according to the  number of riders entered.  1. vehicles of nations entering at least five riders;  2. vehicles of nations entering less than five riders grouped according to the  number of riders entered.  Men Junior event  Men Under 23 event  Women elite event  Men elite event  Within each group, the order is determined by the most recently published UCI World  ranking by nations. For vehicles representing more than one nation, the highest ranked  nation will be taken into account.  In each group, the order shall be determined by the last elite women classification by  nation published.  For the vehicles grouping several nations, account shall be taken of the highest ranked  nation.  In each group, the order shall be determined firstly by the latest Under 23 Men Nation  Cup classification by nation published and secondly the order of the remaining nations  shall be determined by the number of UCI points in the latest classification by nation  published for the continental circuits.  For the vehicles grouping several nations, account shall be taken of the highest ranked  nation.  E170421  ROAD RACES  42 