Individual stations such as WPBS-TV (in Watertown, New York) and KPBS (in San Diego, California) are not allowed to be owned by the Public Broadcasting Service; most belong to local community non-profit groups, universities or local and state educational organizations. The national PBS system is owned collectively by hundreds of broadcasters in communities nationwide. Individual member stations are free to carry large amounts of syndicated programming and many produce their own educational or edutainment content for distribution to other PBS member stations through services like American Public Television or the National Educational Television Association; likewise, most content on PBS's core national programming service is produced by various individual member stations such as WGBH-TV, WNET and WETA-TV. These are not affiliate stations in that the ownership of the main network is not independent of ownership of the individual local stations.
31, 1969, organizations requesting rulings or determinations that they are affiliates of a governmental unit must discuss in the request the presence or absence of each of the factors listed (in situations in which no ruling or determination has been received and facts and circumstances relevant to the determination (regarding the otherwise necessary administration of the law).