Official Records of the Economic and Social Council, Thirty-fourth Session, Supplement No. 10  (E/3586, E/CN.14/168), p. 44.

Article 64 (2) of the Agreement provides that a State may, after the Agreement has entered into force, become a member of the Bank by accession to the Agreement on such terms as the Board of Governors may determine; that the Government of such State shall deposit its instrument of accession on or before a date appointed by the Board, and that, upon the deposit, the State concerned shall become a member of the Bank on the appointed date.

Following are, in respect of each acceding State, the number and date of the pertinent resolution adopted by the Board of Governors of the Bank.  In all cases, the terms for accession included the payment of the first instalment of its initial subscription to the Bank by the State concerned and, unless otherwise indicated, the appointed date corresponded to the date of deposit of the instrument of accession with the Secretary-General:

* Pursuant to the resolution of the Board of Governors (No. 04-80 of 23 June 1980), the Agreement is deemed to have taken effect retroactively for Zimbabwe as of 23 June 1980, upon completion of all the necessary conditions and receipt of its instrument of accession by the African Development Bank.

The Agreement was originally signed and the instrument of ratification was deposited on behalf of Tanganyika. Following the formation of the Union between Tanganyika and Zanzibar under the name of the United Republic of Tanzania (see note 1 under “United Republid of Tanzania” in the “Historical Information” section in the front matter of this volume.), the Government of that country submitted a declaration to the African Development Bank to the effect that "it assumes the membership in the ADB both as regards Tanganyika and Zanzibar, and desires the Bank to give effect to this extension and to increase its subscription by one million units of account".  The said declaration was considered by the Board of Governors of the African Development Bank at its first plenary session on 4 November 1964.  In resolution No. 3 adopted on the same date, the Board of Governors, having expressed the desire of giving full effect to the extension of membership of the United Republic of Tanzania, decided,  inter alia , that the subscription of that country to the capital stock of the ADB should be increased by one million units of account, half of it to consist of paid-up shares, and the other half of   callable shares; and that the extension of membership of the United Republic of Tanzania should take effect upon the payment to the ADB of the first instalment of its initial subscription to the paid-up capital stock as provided in the resolution.  The Board further took note that, upon the extension of its membership, the United Republic of Tanzania would have 1,255 votes.