At its twenty-first session, in 1966, the General Assembly established the Joint Inspection Unit for an initial period of four years (resolution 2150 (XXI) - A|C|F|R|S), and subsequently decided to continue the Unit until 31 December 1973 (resolution 2735 A (XXV) - A|C|F|R|S) and then for a further period of four years beyond that date (resolution 2924 B (XXVII) - A|C|F|R|S). At its thirty-first session, the General Assembly approved the statute of the Joint Inspection Unit as a subsidiary organ of the Assembly and of the legislative bodies of the specialized agencies that accepted the new statute (resolution 31/192 - A|C|F|R|S). The membership of the Unit was increased from 8 to not more than 11 Inspectors, with effect from 1 January 1978. For the composition of the Unit, see item 103 (h) above.
The General Assembly has considered this matter at various sessions from its twenty-first session to the fifty-ninth session (resolutions 2150 (XXI) - A|C|F|R|S, 2735 A (XXV) - A|C|F|R|S, 2924 B (XXVII) - A|C|F|R|S, 31/92 - A|C|F|R|S, 32/199 - A|C|F|R|S, 37/124 - A|C|F|R|S, 38/229 - A|C|F|R|S, 39/242 - A|C|F|R|S, 40/59 - A|C|F|R|S, 41/213 - A|C|F|R|S, 42/218 - A|C|F|R|S, 43/221 - A|C|F|R|S, 44/184, 45/237 - A|C|F|R|S, 48/221 - A|C|F|R|S, 50/233 - A|C|F|R|S, 51/136 - A|C|F|R|S, 54/16 - A|C|F|R|S, 55/230 - A|C|F|R|S, 56/245 - A|C|F|R|S, 57/284 A - A|C|F|R|S and B - A|C|F|R|S, 58/286 - A|C|F|R|S and 59/267 - A|C|F|R|S and decisions 52/467, 53/481 and 54/454.
At its fifty-fifth session, the General Assembly decided to consider the annual reports of the Unit on an annual basis (resolution 55/230 - A|C|F|R|S).
At its fifty-ninth session, the General Assembly decided that the Unit should include, in its annual reports, information on implementation and the results achieved by organizations in respect of their follow-up to the recommendations of the Unit, as endorsed by their legislative bodies, and the arrangements put in place by participating organizations for reporting thereon (resolution 59/267 - A|C|F|R|S).
At its resumed sixtieth session, in June 2006, the General Assembly requested the Joint Inspection Unit to continue to enhance dialogue with participating organizations and thereby to strengthen the follow-up of the implementation of its recommendations, in particular on managing for results; and requested the Unit to include in future annual reports more information on the impact of full implementation of recommendations, including any cost savings, productivity and efficiency gains achieved (resolution 60/258 - A|C|F|R|S).