Certain personal information may be collected which is not contained in the specific data banks described above; for example, information on personnel providing services to the Board or an operator (either directly or through a contractor) or personal information obtained through requests for information or offers of services. This information is stored as part of the general subject files, where records are not normally retrieved by an individual's name or other personal identifier. This personal information is normally retrievable only if specifics are provided concerning the subject matter. The retention periods for these classes of personal information are controlled by the records disposal schedules of the general subject files in which they are stored.