Library of Congress

Research and Reference Services

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Public tours of the Library of Congress Thomas Jefferson Building are offered Monday through Saturday.  All Library of Congress buildings are closed on Sundays; all Reading Rooms, as well as the Adams and Madison buildings are closed to the public on all Federal Holidays.  Daily and holiday hours for visitors to the Great Hall and exhibitions differ (view general building hours).

As part of a major renovation project, the Law Library Reading Room, normally located in Room LM 201 in the James Madison Memorial Building of the Library of Congress, 101 Independence Ave. SE, Washington, D.C., has been reloacted to temporary quarters in Room LM G15 and will remain there until renovations are completed. Learn more

Note to researchers: Please be sure to check the hours of the specific reading room or center you plan to visit.

Building Abbreviations and Codes:
LA = Adams Building | LJ = Jefferson Building | LM = Madison Building | § By appointment only

Reading Room / Reference Center Monday Tuesday Wednesday Thursday Friday Saturday
African & Middle Eastern (LJ 220)8:30a-5:00p8:30a-5:00p8:30a-5:00p 8:30a-5:00p8:30a-5:00pClosed
Asian (LJ 150) 8:30a-5:00p8:30a-5:00p8:30a-5:00p8:30a-5:00p 8:30a-5:00p Closed
Business Reference Services (LA 508)8:30a-9:30p8:30a-5:00p 8:30a-9:30p8:30a-9:30p8:30a-5:00p8:30a-5:00p
Children's Literature Center (LJ 129) §8:30a-4:30p8:30a-4:30p 8:30a-4:30p8:30a-4:30p8:30a-4:30pClosed
Copyright Office (LM 402) 8:30a-5:00p* 8:30a-5:00p* 8:30a-5:00p* 8:30a-5:00p* 8:30a-5:00p* Closed
European (LJ249) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
Folklife (LJ G53) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
Geography & Map (LM B01) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
Hispanic (LJ 240) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
Law Library (LM G15) - please see note above 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p
Local History & Genealogy Reference Services (LJ 100)8:30a-9:30p 8:30a-5:00p 8:30a-9:30p 8:30a-9:30p 8:30a-5:00p 8:30a-5:00p
Main (LJ 100) 8:30a-9:30p 8:30a-5:00p 8:30a-9:30p 8:30a-9:30p 8:30a-5:00p 8:30a-5:00p
Manuscript (LM 101) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p
Microform and Electronic Resources Center (LJ 139) 8:30a-9:30p 8:30a-5:00p 8:30a-9:30p 8:30a-9:30p 8:30a-5:00p 8:30a-5:00p
Motion Picture & Television (LM 336) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
-- Motion Picture Viewing Facilities § 8:30a-4:30p 8:30a-4:30p 8:30a-4:30p 8:30a-4:30p 8:30a-4:30p Closed
Newspaper & Current Periodical (LM 133) 8:30a-9:30p 8:30a-5:00p 8:30a-9:30p 8:30a-9:30p 8:30a-5:00p 8:30a-5:00p
Performing Arts (LM 113) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p
Duplication Services (LA 128) 9:00a-3:00p 9:00a-3:00p 9:00a-3:00p 9:00a-3:00p 9:00a-3:00p Closed
Prints & Photographs (LM 337) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
Rare Book & Special Collections (LJ 239) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
Recorded Sound Reference (LM 113) 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p Closed
-- Recorded Sound Listening Facilities § 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p 8:30a-5:00p §
Science & Technology (LA 508) 8:30a-9:30p 8:30a-5:00p 8:30a-9:30p 8:30a-9:30p 8:30a-5:00p 8:30a-5:00p

* Some services end at 4:30pm

Requesting Closed-Stack Materials
For delivery of materials from closed stack collections, requests typically must be made at least one hour, and sometimes two hours, before the reading rooms close. Details are available in the reading rooms and on their home pages.

Reference Collections
Each reading room also has a reference collection that is openly available during reading room hours.