(a) An association, with the approval of the racing judges, shall establish qualifying times for all distances.(b) An association shall notify the executive secretary at least three days before the first day of a race meeting of the qualifying times established by the association. The association shall continuously post the qualifying times in a conspicuous place. A new qualifying time established during a race meeting takes effect, after approval by the racing judges, on the third day after the date the association posts the new time.(c) The period for race qualifications of greyhounds may not exceed the period from the beginning of official schooling to one week before the last day of the race meeting.