Magyar Antidopping Csoport

WADA launches stakeholder consultation regarding 2021 Technical Letters

Montreal, 7 October 2020

Dear Colleagues,

The World Anti-Doping Agency (WADA) invites stakeholders to participate in a consultation process for the 2021 Technical Letters (TLs), which have been revised to align with the 2021 World Anti-Doping Code (Code); the 2021 International Standard for Laboratories (ISL) (v.11.0); and, the other International Standards that are set to come into force on 1 January 2021.

All stakeholders are therefore invited to review the following TLs and make recommendations by 30 October 2020, using WADA’s online consultation platform, WADAConnect. These revised TLs will be subsequently presented for approval to WADA’s Executive Committee.
  1. TL01 – Meclofenoxate,
  2. TL02 – Mebeverine Metabolism,
  3. TL03 – Zilpaterol,
  4. TL04 – Zeranol,
  5. TL05 – Oxilofrine,
  6. TL06 – Possible Metabolism of Proguanil into Chlorazanil,
  7. TL07 – Andarine - Flutamide,
  8. TL08 – Use of Internal Standards,
  9. TL09 – Oxethazaine,
  10. TL10 – In situ Formation of Exogenous Compounds,
  11. TL11 – Oxymorphone,
  12. TL12 – Ostarine,
  13. TL13 – Trimetazidine,
  14. TL14 – Difference in “A” and “B” Sample Urine Characteristics,
  15. TL15 – Hydromorphone,
  16. TL16 – Tretoquinol,
  17. TL17 – Detection of Tulobuterol in the presence of Bupropion,
  18. TL18 – Testolactone,
  19. TL19 – Prednisone and Prednisolone,
  20. TL20 – Specific Substances with a Steroid Structure,
  21. TL21 – 6-oxo and metabolites, and
  22. TL22 – Ethylmorphine.
In these versions of the TLs, some sections have been updated for consistency with the revised ISL (v.11.0), including updated terms and definitions, and further clarifications have been introduced, where relevant, to facilitate interpretation. For some TLs, further clarifications regarding the analysis and reporting requirements are now provided and sections have been reorganized to facilitate reading and interpretation.

Under the ISL, WADA’s Technical Letters provide specific direction to WADA-accredited laboratories; WADA-approved laboratories for the Athlete Biological Passport; and, other stakeholders on particular issues regarding the analysis, interpretation and reporting of results for specific prohibited substance(s) and/or prohibited method(s) and/or on the application of specific laboratory procedures.

For any questions related to the above, we invite you to contact

We thank you in advance for your feedback.

Best regards,

World Anti-Doping Agency
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The World Anti-Doping Agency (WADA) is the international independent organization created in 1999 to promote, coordinate and monitor the fight against doping in sport in all its forms. The Agency is composed and funded equally by the sports movement and governments of the world. Its key activities include scientific research, education, development of anti-doping capacities and monitoring of the World Anti-Doping Code - the document harmonizing regulations regarding anti-doping in all sports and all countries.