1907年英国政府授予德兰士瓦殖民地和奥兰治河殖民地(英语:Orange River Colony)责任政府后。随着时间的推移:班巴塔叛乱、华工涌入、印度人骚乱、运输税率,以及第一次工业化的浪潮等问题与因素;[7]南非各殖民地认为组成联邦是有益的。因此过去开普、纳塔尔、德兰士瓦和奥兰治合并成为一个联邦的老方案又被重新提出。[7]起初双方的谈判目的仅仅停留在四个殖民地的联邦,不久谈判取得突破性进展,转而为成立一个新的联邦国家。[7]而阿非利卡人因意识到自己人数上将占优势而也支持这一点。[8][9]
^ 19.019.1Kingdom, enacted the Parliament of the United. If the House of Assembly passes any Bill and the Senate rejects or fails to pass it or passes it with amendments to which the House of Assembly will not agree, and if the House of Assembly in the next session again passes the Bill with or without any amendments which have been made or agreed to by the Senate and the Senate rejects or fails to pass it or passes it with amendments to which the House of Assembly will not agree, the Governor-General may during that session convene a joint sitting of the members of the Senate and House of Assembly. The members present at any such joint sitting may deliberate and shall vote together upon the Bill as last proposed by the House of Assembly and upon amendments, if any, which have been made therein by one House of Parliament and not agreed to by the other; and any such amendments which are affirmed by a majority of the total number of members of the Senate and House of Assembly present at such sitting shall be taken to have been carried, and if the Bill with the amendments, if any, is affirmed by a majority of the members of the Senate and House of Assembly present at such sitting, it shall be taken to have been duly passed by both Houses of Parliament: Provided that, if the Senate shall reject or fail to pass any Bill dealing with the appropriation of revenue or moneys for the public service, such joint sitting may be convened during the same session in which the Senate so rejects or fails to pass such Bill.. South_Africa_Act,_1909. : Powers of Parliament. 63 [2022-02-26]. (原始内容存档于2022-03-12).
^Kingdom, enacted the Parliament of the United. (1) Parliament may by law prescribe the qualifications which shall be necessary to entitle persons to vote at the election of members of the House of Assembly, but no such law shall disqualify any person in the province of the Cape of Good Hope who, under the laws existing in the Colony of the Cape of Good Hope at the establishment of the Union, is or may become capable of being registered as a voter from being so registered in the province of the Cape of Good Hope by reason of his race or colour only, unless the Bill be passed by both Houses of Parliament sitting together, and at the third reading be agreed to by not less than two-thirds of the total number of members of both Houses. A Bill so passed at such joint sitting shall be taken to have been duly passed by both Houses of Parliament.. South Africa Act, 1909. : 35 [2022-02-26]. (原始内容存档于2022-03-12).