23 Va. Admin. Code § 10-210-3074 - Research; Use of Exemption Certificates.

In making purchases for use in research, a person should furnish suppliers with a certificate of exemption, Form ST-11. However, these certificates should not be used in making purchases of items which are not directly and exclusively used in research. If the business gives a certificate of exemption and then uses some of the property purchased for purposes other than research, the business must remit the tax to the department as provided in 23VAC10-210-3071 D.