As a single test represents a snapshot in time, i t is generally recognized that the ABP is more efficient when at least  three (3)  tests APMU   Expert s Passport  Custodian  Laborato ries       ABP Operating Guidelines  – Version 9.0 – July 2023  Page 12/91 are planned  per Athlete  in a calendar year , across the athlete’s training, competition, and off -season periods , where additional reactive tests may be included should the Passport  demonstrate abnormal features .