So PADI will be conducting 2 Instructor Examination's in the UK this year. April 30th to May 1st & October 8th to October 9th @ Bristol. As an exit requirement to be an OWSI, you also have to become an EFRI. Many Course Director's will incorporate this course into their IDC & even tho that can be done & is the norm. Ease the work load of learning this credential @ the same time as doing your IDC & earn your EFRI through jeffsdivingworld. PADI Instructor Candidates.