5.2 Authority to Test   5.2.1   Subject to the limitations for Event Testing  set out in Article 5.3, ITTF  shall have In-Competition  and Out-of-Competition Testing  authority over all  22  [Comment to Article 4.4.7.1: WADA shall be entitled to charge a fee to cover the costs of: (a) any review it is required to conduct in accordance with Article 4.4.7; and (b) any review it chooses to conduct, where the decision being reviewed is reversed.]