London - UK Athletics said on Friday they have found "no reason to be concerned" about double Olympic champion Mo Farah's coach Alberto Salazar and his training programme at the US-based Oregon Project.
Farah, the reigning Olympic and world champion over both the 5 000 and 10 000 metres, has faced intense media scrutiny after allegations Salazar administered testosterone to American distance runner Galen Rupp in 2002 when Rupp - a training partner of Farah - was only 16, and encouraged misuse of prescription drugs.
But a review carried out for UK Athletics by the Performance Oversight Group (POG) found "no evidence of any impropriety" from the 32-year-old British track star or any reason to "lack confidence" in his training programme.
A statement from UK Athletics said: "In July we said that there was no evidence of any impropriety on the part of Mo Farah and no reason to lack confidence in his training programme.
"The Oversight Group have restated that view today. They have also found no reason to be concerned about the engagement of other British athletes and coaches with the Oregon Project."
There is no suggestion Farah has violated anti-doping rules, although he came under pressure after it emerged he missed two drug tests in the lead-up to the London 2012 Olympics.