NIST produces the Nation’s Standard Reference Data (SRD). These data are assessed by experts and are trustworthy such that people can use the data with confidence and base significant decisions on the data. Answers to frequently asked questions about how to order SRD products can be found on this page.

Yes, a site license is available for multiple users at discounted pricing. Please email for more information.

Yes, most SRD products are licensed to one Authorized user and may be installed on multiple computers that are only accessible by the Authorized user. See the Standard Reference Data Terms and Conditions .

You can find a link to download the database in your profile. For additional help, email with your order number and contact information for the purchaser.

The NIST ECCN number is EAR99.

The NIST EIN is 530205706.

A pro forma invoice is a quote in an invoice format that may be required by the buyer to apply for an import license, contract for pre-shipment inspection, open a letter of credit, or arrange for transfer of hard currency. NIST replaces the traditional invoice with a Pro Forma invoice for sales on