Authority Express (AEX) provides rapid-turnaround of your new records. You simply upload a file of bibliographic records via FTP or through this website and in no time you can download fully authorized bibliographic records along with the appropriate Library of Congress authority records. Reports are also provided showing the results of the processing and a list of unlinked headings. Files up to 10,000 records are typically finished within one-half hour after they have been received at LTI.
Authority Update Processing (AUP)
helps you keep the rest of your database updated. Every week, LC distributes around 7600 name and 400 subject authority records. Some are new, some are changed. Offered on a quarterly, semi-annual or annual basis, AUP subscribers receive files of new, revised and deleted authority records, updated bibliographic records, and reports of affected headings and LC authority records. You can choose to overlay your old records, or make the changes manually using the lists we provide.