Rider  Whereabouts Information  The UCI has adopted a ‘pyramid’ or ‘tiered approach’, placing Rider s into different whereabouts pools, referred to as the Registered Testing  Pool, Testing  Pool and other pool(s), depending upon how much whereabouts information it needs to conduct the amount of Testing  allocated to those Rider s.   In accordance with the foregoing, four different tiers are established:  Tier 1:  Rider s included in the UCI Registered Testing  Pool (RTP) and therefore required to provide full whereabouts information ;  Tier 2:  Rider s included in the UCI Testing Pool  (TP) and therefore required to provide limited whereabouts information ; Tier 3:  Rider s included in the UCI General Pool  (GP) and whose whereabouts information is therefore limited to that collected from their Team;  Tier 4:  Rider s who are not required to provide whereabouts information.