Except when overtaking and passing on the right is permitted, the driver of an overtaken vehicle shall give way to the right in favor of the overtaking vehicle and shall not increase the speed of his vehicle until completely passed by the overtaking vehicle. Any over-width, or slow-moving vehicle as defined by § 46.2-1081 shall be removed from the roadway at the nearest suitable location when necessary to allow traffic to pass.
Va. Code § 46.2-842