++++ 1 . Officials - Recruitment - Competition - Competition based on qualifications and tests - Non-admission to the tests - Statement of reasons for non-admission - Obligation - Scope ( Staff Regulations, Annex III, Art . 5 ) 2 . Officials - Recruitment - Competition - Conditions for admission - Practical experience equivalent to a certificate - Selection Board' s power of appraisal ( Staff Regulations, Art . 5 ( 1 ) ) 3 . Officials - Recruitment - Competition - Competition based on qualifications and tests - Consideration of candidates' certificates for the purpose of admission to tests - Different appraisal of same candidate in successive competitions - Permissibility - Conditions ( Staff Regulations, Annex III, Art . 5 )