UCI CYCLING REGULATIONS  1.2.092 A rider whose licence could not be verified and whose status as a non-suspended licence  holder cannot be established in any other manner may not start and may not figure in  the classification of the event.  1.2.093 The licence check shall take place in an area of sufficient size and which is inaccessible  to the public.  1.2.094 For road races, the riders must sign the signature sheet under the supervision of a  commissaire prior to the start.  1.2.095 The start shall be given by means of a pistol, a whistle, a bell, a flag or by electronic  means.  1.2.096 The start shall be given by – or under the control of – a commissaire (the starter) and he  alone shall judge the validity of the start.  1.2.097 A false start shall be indicated by a double pistol shot, a double-whistle or a double bell- chime.  1.2.098 The commissaires shall verify that riders present on the start line are equipped according  to the regulations (bicycle, clothing, identification numbers, etc.)  1.2.099 The finish line shall comprise a line of 4 cm in width, painted in black on a white strip 72  cm wide thus leaving 34 cm of white on each side of the black line. For mountain bike  races the white strip must be 20 cm, thus leaving 8 cm on each side of the black line.  1.2.100 The finish occurs at the instant that the tyre of the front wheel meets the vertical plane  rising from the starting edge of the finishing line. To this end, the verdict of the photo- finish shall be final.  1.2.101 In road, mountain bike, BMX and cyclo-cross events, a banner labelled "FINISH" must  be fixed above the finishing line and perpendicular to the road or course. Should the  banner have disappeared or been damaged, the finish line shall be indicated by a black  and white chequered flag.  (text modified on 01.01.05)  (text modified on 01.01.04; 01.01.05; 03.06.16)  (text modified on 01.01.05)  (text modified on 01.01.04; 01.01.05)  (text modified on 01.01.00; 01.01.04; 01.09.04; 01.01.05)  Unless otherwise specified, the finish may also be observed using any appropriate  technical means that is accepted by the commissaires' panel.  § 7  Finish  Finish line  § 6  Start of the race  E0221  GENERAL ORGANISATION OF CYCLING AS A SPORT  41 