Raden Abdul Kadir Widjojoatmodjo, second in command of the NICA/AMACAB, 1947.
The Netherlands Indies Civil Administration (abbreviated NICA; Dutch: Nederlandsch-Indische Civiele Administratie) was a semi-military organisation, established April 1944, tasked with the restoration of civil administration and law of Dutch colonial rule after the capitulation of the Japanese occupational forces in the Netherlands East Indies (present-day Indonesia) after World War II.
In January 1946 the name was changed to Allied Military Administration-Civil Affairs Branch (AMACAB). After the British departure from the Indonesian arena and the disbandment of the SEAC in June 1946, the name was changed into Tijdelijke Bestuursdienst (Temporary Administrative Service).
The NICA was established on April 3, 1944, in Australia and operated as a link between the Netherlands East Indies Government in exile and the Allied high command in the command area of the Southwest Pacific Area (SWPA). Based in (Camp Colombia) Brisbane it originally reported into the Allied command structure. Early 1944 Dutch Lieutenant-Governor-General H.J. Van Mook and U.S. General Douglas MacArthur, supreme commander SWPA, agreed that areas of the Dutch East Indies recaptured by allied (i.e. US) troops will be put under civil administration of the NICA. Due to political procrastination by the U.S. State Department, it was December 10, 1944 before the Van Mook-MacArthur Civil Affairs Agreement was officially signed.