Library of Congress Fax Number — Send Documents Securely
Faxing sensitive paperwork to Library of Congress is fine — over a secure, encrypted channel, which is where most people slip. Library of Congress is a federal agency based in Washington, District of Columbia, that works with requesters, applicants, and the public across the country. This guide covers the secure way to send the document plus how to reach the correct office at the agency.
Library of Congress Fax Number
Verify the fax with Library of Congress directly rather than trusting an old listing
Hours: Faxes reach Library of Congress around the clock, though processing depends on the office and its schedule.
Send a Fax NowWhat You Can Fax to Library of Congress
- A copy of the notice or case number the document responds to
- A callback number and email so staff can reach you with a question
- The supporting documents the office asked for, in one combined PDF
- A records or FOIA request naming the records you want
- A cover sheet naming the exact office and the reason for the fax
The secure way to fax Library of Congress
Anything headed to Library of Congress with sensitive and confidential records deserves a channel that protects it in transit. Confidential records deserve a channel that protects them from the machine to the recipient. Send FAX Mail encrypts every page in transit and returns a delivery confirmation, from the Starter plan at $12.99/month — a safer route to Library of Congress than a public machine.
The FOIA-and-records path at Library of Congress
Library of Congress processes a request once it clearly identifies the records sought. A records request names the records, the dates, and how you want to receive them. Confirm the current fax with Library of Congress before you send.
The honest way to get Library of Congress's fax
A fax number copied from a search result may be stale; Library of Congress has the current one. Ask the office named on your notice — it is the authority on its own current fax. A quick verification beats faxing to a number that has moved.
Faxing to Library of Congress — FAQ
A number copied from a search result may be stale; Library of Congress has the current one. The notice you received names the office and, often, how it wants documents. That one verification keeps sensitive pages out of the wrong queue.
The office that owns your request is the one to fax at Library of Congress. The office named on your most recent correspondence is the safest destination. Sending to the wrong office only adds a routing step and a delay.
There is no single agency-wide fax at Library of Congress. Records, program, and correspondence functions each keep their own line. Ask for the office you actually need to get the right number. Keep the confirmed number with your file so you are not searching next time.
Include the identifiers Library of Congress uses to match your record: name and case or file number. Add a cover sheet addressed to the office on your notice at Library of Congress with a callback number. That routing detail is what lets Library of Congress reconnect the documents if they separate. Reference the notice or docket number the document responds to.
Need to fax Library of Congress?
Upload your document and send in under a minute. No fax machine needed.
7-day free trial · No credit card required