 Founded in 1946, it is the oldest existing LGBT organization in the world.Since 2000 it has a federated structure of 24 local associations, united on national level in the "Federatie van Nederlandse Verenigingen tot Integratie van Homoseksualiteit COC Nederland" (Federation of Dutch Associations for Integration of Homosexuality COC Netherlands), or COC Nederland for short.All the local associations combined have about 7,000 members.