Convenience Copies Convenience copies may be destroyed at any time prior to the date the master record has met its retention requirement. They must be destroyed no later than the date the master record has met its retention requirement. Any convenience copy retained after the disposition of the master record becomes a master record. Caution: If a determination cannot be made as to whether a record is a master record or a convenience copy, the record must be treated as a master record and all requirements for disposition of master records must be applied. For more information, refer to 20.6.2. Convenience Copies.