UK Athletics (UKA) has found no evidence of wrongdoing by Mo Farah in the initial findings of its investigation into allegations of doping against his coach Alberto Salazar.
The British governing body also said its investigation had not given it "any reason to question the appropriateness of the input" given by the Nike Oregon Project to the double Olympic champion's training regime.
UKA launched a review following allegations broadcast in a BBC Panorama programme in June that Salazar, the head coach at the Nike Oregon Project in Portland, where Farah trains, had violated several anti-doping rules.
Salazar, who is an 'unpaid consultant' for UKA, has strenuously denied all the accusations against him and Farah, who was not accused of any wrongdoing in the BBC documentary, has vowed to stick by his coach unless any allegations are proven.
UKA launched a review into the American's relationship with the governing body and Farah, which was undertaken by its three-person Performance Oversight Group, comprising former athletes Jason Gardener, Dr Sarah Rowell and Anne Wafula-Strike.
A statement from UKA said: "With reference to the first and most vital objective of the review, the Board can confirm that none of the extensive information supplied to the POG contained any evidence of impropriety on the part of Mo Farah, nor gave UK Athletics any reason to question the appropriateness of the input given by the Oregon Project to Mo Farah's training regime."
Farah was questioned by the United States Anti-Doping Agency (USADA) in a routine meeting at a central London hotel on Saturday, a day after he received a warm reception on a winning return to the Olympic Stadium for the Sainsbury's Anniversary Games.
Meanwhile, Sebastian Coe has edged closer to securing the IAAF presidency after winning public declarations of support of 12 European countries, including Ireland.
Coe is running against Sergey Bubka, the former Olympic pole vault champion from Ukraine, with the election to take place on August 19 in Beijing.
Coe's team insist they are taking nothing for granted in the run-up to the election but nevertheless the declarations indicate he is well out in front in the race to succeed Lamine Diack.
The double Olympic 1500 metres gold medallist and former London 2012 chairman has been promised the support of Athletic Association Small States of Europe (AASSE), a group of nine countries, plus Estonia, Ireland and Italy.