British Athletics are under investigation following an report by the BBC in which athletics staff did not record an infusion of a controversial supplement on Sir Mo Farah.
The infusion was of the legal supplement L-carnitine which was given to Farah before a race in 2014.
The infusion is being looked at by the US-Anti doping agency to see if any rules were broken.
UKA medics may have failed to centrally log the infusion, including the amounts to the doping authorities.
A spokesperson for Farah said the infusion was well below the 50ml limit permitted by WADA.
Farah's coach Alberto Salazaar has been under investigation by the US and UK anti-doping agencies since 2015. It is alleged the infusion was carried out by medics under his instruction.
The report comes less than two weeks after Sir Mo Farah released a statement stating that he was a clean athlete who has never broken any rules following a leaked report by the US anti-doping agency that suggested Salazaar may have broken anti-doping rules to improve the performance of some of the athletes he coaches.