Our web site is undergoing a transformation. During this period, you may encounter some intermittent outages. Please check back with us often for the new updates.

Skip to Main Content

Return Policy


NTIS electronically stores many of the 3 million items in our collection and custom-reproduces a single copy specifically for your order. Therefore, NTIS does not accept cancellations, requests for modifications, or returns for credit or refund. All sales are final. NTIS strives to provide quality products, reliable service, and fast delivery. Please contact us for a replacement within 30 days if the item you receive is defective or if we have made an error in filling your order.

E-mail: customerservice@ntis.gov

Phone: (888) 584-8332 or (703) 605-6050

Back to top