An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Directions from within HCHB: The Commerce Research Library is on the first floor and can be accessed either by the 6th corridor elevator bank or by the elevators on the corner of the 7th and 8th corridors.
Directions from outside of HCHB: HCHB is located at 1401 Constitution Avenue, NW, and is easily accessible from two metro stations, Federal Triangle & Metro Center. The closest entrance to the library is on the corner of 14th & Pennsylvania Ave. Check in at that entrance with the guards, and then follow the red signs to the Commerce Research Library.
Visitors from the Public
General Library Visitors: Our public hours are by appointment only for visitors with a valid research need that requires access to the Library's print collections. Please call or email ahead of time to ensure we have the materials you are looking for and that there is library staff available to escort you from security in a timely manner. The Herbert C. Hoover Building (HCHB) is located at 1401 Constitution Avenue, NW, and is easily accessible from two metro stations, Federal Triangle & Metro Center. The building entrance for members of the public is on 14th St. across from the Ronald Reagan Building.
Library Event Visitors: Did a Commerce employee invite you to an event in the library? All non-DOC employees must have a DOC escort at all times within HCHB, so please coordinate your arrival with the DOC employee hosting you to find the best entrance to use. Library staff are not available to escort visitors during events.
There is no onsite parking at the Herbert C. Hoover Building. The closest parking is at the Ronald Reagan Building across the street.
DOC Staff: Monday to Friday 8 a.m. - 4:30 p.m.
General Public: Our public hours are by appointment only for visitors with a valid research need that requires access to the Library's print collections. Please call or email ahead to ensure we have the materials you need and available library staff to escort you from security.
1401 Constitution Ave, NW
Washington, DC 20230
Monday to Friday
8 a.m. to 4:30 p.m.
Closed on Federal Holidays
General Public - by appointment only
An official website of the U.S. Department of Commerce