Visiting the Niels Bohr Library & Archives

1. Schedule an appointment with the Library using the link on the sidebar or email to arrange an appointment outside our typical hours.

2. Before your in-person appointment, please fill out our researcher registration form

3. If known, fill out item request form before visit. Limit to up to 3 collections before visit.

Book a Research Appointment

Schedule a visit to our reading room *appointments are 5 hours long.

Due to a library renovation project, many of our books are temporarily unavailable until the project is completed (estimated July 2024). Archives and Special Collection materials are still available for research. Please see our catalog for the full availability of items or contact us at with questions about the availability of specific materials. We apologize for the inconvenience.

Updated Hours

Monday - Friday10am - 4pm, appointments required

Appointments are open to the general public. Priority will be given to patrons intending to use our research materials.

Appointments must be made at least 7 days in advance. Please indicate planned arrival and departure times if they differ from our standard hours of 10am-4pm

If you are more than half an hour later than your stated arrival time, reference staff reserve the right to move or cancel your appointment. Please let us know if you will be more than half an hour late at or (301) 209-3177


Please email us at if you need to schedule an appointment outside our appointment availabilities or typical hours.

Updated Reading Room Policies

Mask are encouraged but not required. We can provide a mask if you don't have one. 

No eating or drinking within the reading room, though you can bring food and drink and consume it in the building's cafeteria on the ground floor. Note: there are no options for purchasing food in the building, but there are tables, chairs, microwaves, water and ice, and coffee/tea, as well as outdoor seating. Please plan accordingly.

Request items before or during a visit through the item request form (before a visit please limit to 3 collections maximum, more collections can be requested on-site)

Rules for research

  • Items that can be taken to researcher desks include (may be stored at reference desk):
    • Laptops, cameras, tablets, phones, etc.
    • Notebooks
    • Folders
    • Paper
    • Pencils
  • Items that CANNOT be taken:
    • Food
    • Drinks (even closed water bottles)
    • Pens
    • Bags