++++ 1 . OFFICIALS - RECRUITMENT - NOTICE OF VACANT POST - ELIGIBILITY FOR POST - CONDITIONS - OFFICIALS ELIGIBL FOR TRANSFER OR PROMOTION - APPLICATION EXCLUDED - ACT ADVERSELY AFFECTING SUCH OFFICIALS ( STAFF REGULATIONS, ARTICLE 29 ( 1 ) ( A )) 2 . OFFICIALS - RECRUITMENT - POST - POST RESERVED FOR NATIONALS OF A SPECIFIC MEMBER STATE - PROHIBITION - SPECIFIC ABILITIES - REQUIREMENT IN THE INTEREST OF THE SERVICE - PERMISSIBILITY ( STAFF REGULATIONS, ARTICLE 27 ) 3 . OFFICIALS - RECRUITMENT - CONDITIONS - THOROUGH KNOWLEDGE OF A LANGUAGE - REQUIRED LEVEL OF KNOWLEDGE ( STAFF REGULATIONS, ARTICLE 27 )