"Contested race" means an election for an office where more names appear on the ballot then there are vacancies to be filled or a statewide referendum or proposed constitutional amendment.
"Risk limit" means the largest probability that the risk-limiting audit will fail to correct an election outcome that differs from the outcome that would be found by a full manual tabulation of the votes on all ballots cast in the contested race.
"Risk-limiting audit" means an audit protocol conducted after an election and prior to the certification of the election results with a pre-specified minimum probability of requiring a full hand count of votes cast if the outcome reported by the voting system differs from the outcome that would be found by a full hand count of the votes in a contested race. A "risk-limiting audit" requires a hand count of randomly sampled printed ballots that continues until there is either strong statistical evidence that the reported outcome is correct or, in the absence of such evidence, a full hand count of all ballots cast in the contested race that determines the outcome.
Va. Code § 24.2-672.1