Va. Code Ann. § 19.2-182.13

The Commissioner may delegate any of the duties and powers imposed on or granted to him by this chapter to an administrative board composed of persons with demonstrated expertise in such matters. The Department of Behavioral Health and Developmental Services shall assist the board in its administrative and technical duties. Members of the board shall exercise their powers and duties without compensation and shall be immune from personal liability while acting within the scope of their duties except for intentional misconduct.