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Published online by Cambridge University Press: 13 August 2015
This chapter gives the main IAU scientific bodies (Division, Commissions and their Working Groups) in force until the end of the XVIIIth General Assembly. As a result of the adoption of Resolution B4 by this Assembly, a new Divisional structure was established (see Chapters II and IV of these Transactions), to take effect on 1 September 2012.