World Programme for the Census of Agriculture

The World Programme for the Census of Agriculture (WCA) is an international programme led by the Food and Agriculture Organization of the United Nations (FAO) that supports the implementation of national censuses of agriculture on a 10-year basis through the use of standard concepts, definitions and methodology. The WCA was developed in the years 1929–1930 by the International Institute of Agriculture (IIA).

Source: Wikipedia — World Programme for the Census of Agriculture (CC BY-SA 4.0)