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Customer Service at a Glance

Hours of Operation

Our staff is here to assist you from 8:00 a.m. to 6:00 p.m. , ET, Monday through Friday.

Holiday Closings

NTIS is closed on federal holidays: Christmas Day; Columbus Day; July 4th; Labor Day; Martin Luther King, Jr. Day; Memorial Day; New Year's Day; President's Day; Thanksgiving; and Veteran's Day.

Need help placing an order?

  • Call our Sales Department at 1-800-553-6847 or (703) 605-6000. Fax: (703) 605-6900; e-mail:orders@ntis.gov
  • TDD: (703) 487-4639, (8:30 a.m. to 5:00 p.m., ET)
  • If you want to place a subscription order, call our Subscriptions Department at 1-800-363-2068 or (703) 605-6060. Fax: (703) 605-6880; e-mail: subscriptions@ntis.gov

How to Cancel or Make Changes to Your Subscription/Ongoing Subscription Service

  • Submit your cancellation or change request in writing by e-mail to subscriptions@ntis.gov , or by fax to 703-605-6880 or by mail to:
    National Technical Information Service
    ATTN: Subscriptions Department
    5301 Shawnee Road
    Alexandria, VA 22312
  • Include the following information: name, address, telephone number, Customer Master Number, title of your subscription, and the action to be taken such as cancellation (please include the reason why) or address change.

    Once you cancel your ongoing subscription, no additional products will be shipped. There are no refunds on a cancelled subscription.

Want to visit NTIS?

The NTIS Bookstore is open to the public from 8:30 a.m. to 5:00 p.m., ET, Monday through Friday, at 5301 Shawnee Rd, Alexandria, VA 22312. Phone: (703) 605-6040; Fax: (703) 605-6900; e-mail:bookstore@ntis.gov. You can find directions here.

Need to speak to an NTIS representative?

We welcome your calls. Yes, at NTIS you can still speak to a live person. Each department listed on this page is staffed with representatives waiting to assist you.

Have a question about an order you have already placed?

  • Call our Customer Relations Department at 1-888-584-8332 or (703) 605-6050. Fax: (703) 605-6900; e-mail:customerservice@ntis.gov
  • For questions about subscription orders, call our Subscriptions Department at 1-800-363-2068 or (703) 605-6060. Fax: (703) 605-6880; e-mail: subscriptions@ntis.gov

NTIS Help Desks

For times when you need some extra help, our Help Desk offers assisted support via both e-mail and phone for a variety of products. Use the following e-mail addresses or telephone numbers to ask a specific question.

Web Sites / Databases

NTIS Web site

FedWorld Web site

BXA / EAR online database

Need to know our mailing address?

  • U.S. Postal Service Deliveries: 
    Office of Customer Services 
    National Technical Information Service 
    5301 Shawnee Rd,
    Alexandria, VA 22312
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