LANGUAGE SERVICE AND THE SCIENTIFIC AND TECHNICAL SERVICES, ANNEX I ( A ) AND ( B ) CONTAINS TABLES OF BASIC POSTS AND CORRESPONDING CAREER BRACKETS FOR OFFICIALS IN EACH OF THOSE CATEGORIES AND SERVICES . BY REFERENCE TO THOSE TABLES EACH INSTITUTION MUST, PURSUANT TO ARTICLE 5 ( 4 ), DEFINE THE DUTIES AND POWERS ATTACHING TO EACH BASIC POST IN THE CATEGORIES OR SERVICES .
8 PURSUANT TO ARTICLE 1 ( C ) OF ANNEX III TO THE STAFF REGULATIONS IT IS BY REFERENCE TO THE TYPE OF DUTIES AND TASKS INVOLVED IN THE POST TO BE FILLED THAT THE SELECTION CRITERIA ARE DEFINED WHICH APPLICANTS TO THE COMMUNITY CIVIL SERVICE MUST SATISFY UNDER ARTICLE 28 ( D ) OF THE STAFF REGULATIONS IN ORDER TO BE APPOINTED, FOLLOWING A COMPETITION, TO A PERMANENT POST IN ONE OF THE INSTITUTIONS .
9 PERMANENT POSTS IN THE LANGUAGE SERVICE REQUIRING SPECIAL
LINGUISTIC QUALIFICATIONS ARE THUS FILLED AFTER COMPETITIONS ORGANIZED SPECIFICALLY FOR THE PURPOSE OF ESTABLISHING THE ABILITY OF APPLICANTS TO PERFORM LINGUISTIC DUTIES, WHICH TO THAT EXTENT REQUIRE DIFFERENT QUALIFICATIONS FROM THOSE REQUIRED FOR THE PERFORMANCE OF DUTIES RELATING TO A POSTS .
10 THE SPECIFIC NATURE OF THE DUTIES PERFORMED BY OFFICIALS IN THE LANGUAGE SERVICE IS, MOREOVER, RECOGNIZED BY THE APPLICANT HIMSELF, WHO STATES IN HIS APPLICATION THAT A SPECIFIC TEST OF ABILITY IN THE AREAS OF INTERPRETATION AND TRANSLATION IS NECESSARY FOR THE TRANSFER OF AN A OFFICIAL TO THE LANGUAGE SERVICE .
11 IT FOLLOWS THAT THE DUTIES AND POWERS OF A OFFICIALS ARE DIFFERENT FROM THOSE OF OFFICIALS IN THE LANGUAGE SERVICE . THE SPECIFIC ABILITY OF THE LATTER TO PERFORM TASKS RELATING TO A POSTS MUST THEREFORE BE ASSESSED, AS THE STAFF REGULATIONS NOW STAND, BY MEANS OF COMPETITIONS ORGANIZED SPECIFICALLY TO FILL A POSTS, WHICH A OFFICIALS MUST THEMSELVES PASS PURSUANT TO ARTICLE 28 ( D ) OF THE STAFF REGULATIONS BEFORE BEING APPOINTED TO SUCH POSTS .
12 AS THE COURT HAS ALREADY HAD OCCASION TO POINT OUT ( JUDGMENT OF 21 OCTOBER 1986 IN JOINED CASES 269 AND 292/84 FABBRO AND OTHERS V COMMISSION (( 1986 )) ECR 2983 ), THE TERMS "CATEGORY" AND "SERVICE" ARE USED IN THE STAFF REGULATIONS TO DEFINE TWO DISTINCT CONCEPTS WITH SPECIFIC LEGAL EFFECTS . THE STAFF REGULATIONS PROVIDE FOR CERTAIN SERVICES ( THE LANGUAGE SERVICE AND THE SCIENTIFIC AND TECHNICAL SERVICES ) AND ENVISAGE THE POSSIBILITY OF ESTABLISHING OTHERS, IN ORDER TO PLACE TOGETHER OFFICIALS WHO CARRY OUT PARTICULAR DUTIES FOR WHICH SPECIFIC QUALIFICATIONS ARE REQUIRED AND MAKE POSSIBLE A SEPARATE CAREER
STRUCTURE TAKING INTO ACCOUNT THOSE SPECIAL FEATURES . FURTHERMORE, IT IS CLEAR FROM THE PROVISIONS OF THE STAFF REGULATIONS CONCERNING THE CAREER AND SITUATION OF OFFICIALS THAT A SYSTEMATIC DISTINCTION BETWEEN CATEGORY AND SERVICE IS FUNDAMENTAL TO THEM . INDEED, AT THE HEARING, THE INTERVENERS ARGUED THAT THE DISTINCTION IN SOME PROVISIONS OF THE STAFF REGULATIONS BETWEEN "SERVICES AND CATEGORIES" COULD BE EXPLAINED AS RELATING TO DUTIES OR CAREERS WHICH, DEPENDING