(a) The stewards shall maintain a steward's list of the horses that are ineligible to start in a race because of:(1) poor or inconsistent performance; or(2) behavior on the racetrack that endangers the health or safety of other participants in racing.(b) To be removed from the steward's list a horse must, during a workout or schooling race, perform in a manner satisfactory to show the stewards that the horse:(1) will no longer pose a threat to other participants; and(2) will be competitive in a race in which it participates.