In 1943, a decision was made by the Cabinet of the Union of South Africa to construct three international airports with a Civil Airports Advisory Committee formed to investigate and report on the viability.: That report was submitted to the Cabinet in March 1944 with one main international airport on the Witwatersrand and two smaller international airports at Cape Town and Durban.: The South African Railways and Harbours Administration was given the role of managing the project and later in 1944, a member went to the United States to study standards and methods of construction.: Four possible sites around Johannesburg were identified, with one south of Johannesburg chosen but soon discarded due to being situated on land with gold bearing reefs below.: Sites were then narrowed down to Kempton Park and the existing airport at Palmietfontein.: