Analytical Requirement for the Hematological Module of the Athlete Biological Passport  WADA Technical Document  – TD2021BAR Document Number:  TD2021BAR  Version Number:  2.0 Written by:   Reviewed by:  WADA Science   WADA  Laboratory Expert Group  Approved by:  WADA  Executive Committee Date:  20 May 2021  Effective Date:  01 June 2021   1.0 Introduction The purpose of this Technical Document  (TD) is to harmonize the analysis of ABP blood Samples collected, both In-Competition and Out-of-Competition , for the measurement and reporting of individual Athlete blood Markers  within the framework of the hematological module of the Athlete Biological Passport ( ABP).