Return Policy
ALL SALES ARE FINAL
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