Aid agencies, such as the World Food Programme, provide fortnightly food rations and other essentials to refugees or internally displaced persons who are registered with the UNHCR and are either living in refugee camps or are supported in urban centres. Every registered refugee is given a ration card upon registration which is used for collecting the rations from food distribution centres. The amount of 2,100 kcal allocated per person per day is based on minimal standards and frequently not achieved, such as in Kenya.