Stefan

https://www.bbc.com/sport/athletics/49558809

"Failure to do so - a 'filing failure' - three times in a 12-month period could lead to a rule violation under the World Anti-Doping code.

Usada said clarification from Wada had been sought around the interpretation of the current International Standard for Testing and Investigations (ISTI)

This concerned the date on which a failure to update an athlete's changed whereabouts information should be considered to have occurred.

Usada recorded filing failures for Coleman on 6 June, 2018, 16 January, 2019 and 26 April, 2019.

Two of the three tests were directed by Usada, while a third was initiated by the Athletics Integrity Unit.

However, as the ISTI states that filing failures relate back to the first day of the quarter, Coleman contended that his failure to update which was discovered on 6 June, 2018, should relate back to 1 April, 2018.

When BBC Sport tried the 'whereabouts' drugs testing system

That is more than 12 months prior to Coleman's third filing failure on 26 April, 2019.

Wada clarified this fact to Usada, resulting in the charge being withdrawn."