A regular member when he knows he will be absent from or will have to abstain from any proceeding at a meeting shall notify the chairman of the board of equalization at least 24 hours prior to the meeting of such fact. The chairman may select an alternate to serve in the absent or abstaining member's place and the records of the board shall so note. Such alternate member may vote on any proceeding in which a regular member is absent or abstains. A regular member shall have the right to apply to the board of equalization for relief the same as any other taxpayer. If a regular member applies for relief, and one or more alternate members has been appointed pursuant to this section, then the chairman shall appoint an alternate member to hear and vote on such regular member's application for relief. If the chairman applies for relief, then the vice chairman shall appoint an alternate member to hear and vote on the chairman's application for relief.
Va. Code § 58.1-3373