Please see Ordering Information for additional topics relating to shipping, international orders, and purchase orders.
Tax Exempt Orders: For tax exempt orders within
Virginia, Maryland, Pennsylvania, and Texas, please place your credit card order with Customer Service by
calling (800) 235-7566 (if your tax exempt certificate is already on
file at NCTM). You may also fax your order, with credit card information
or an official purchase order, to (703) 476-2970. Include a copy of
your tax exempt certificate if not previously provided.
To make changes to your order: