When the UFC holds events overseas, it normally acts as it's own regulatory body and for it's last event in Singapore, tested all competing athletes:
All 20 fighters who competed at UFC Fight Night 34 underwent drug testing after the event and successfully passed their tests.
MMAjunkie today confirmed the results with UFC representatives. Additionally, UFC reps said there were no therapeutic-use exemptions for testosterone or any other substance issued for the event.
read entire article...