A county auditor must provide at least two locations to deposit ballots beginning eighteen days prior to election day and ending at 8:00 p.m. on election day. These locations may be either a ballot deposit site, as defined in WAC 434-250-100, or a voting center, as defined in WAC 434-250-105. At least one location may be at the county auditor's office. All other deposit sites must be at geographical locations that are different from the county auditor's office.