(a) To be entered in a race, a horse must:
  (1) be properly registered with the appropriate national breed registry;
  (2) be eligible to enter the race under the conditions of the race; and
  (3) if the horse is to start for the first time:
    (A) be approved by a licensed starter for proficiency in the starting gate within 90 days of the race entered; and
    (B) have two published workouts, one within 90 days and one within 60 days of the race entered.
(b) A horse that has been barred in any racing jurisdiction is ineligible to start or be entered in a race without the approval of the stewards.
(c) To be eligible to enter a Texas-bred race, the horse must be an accredited Texas-bred horse and be registered with the appropriate breed registry.
(d) A horse may not be entered in more than one race scheduled for one race day, unless at least one of the races is a stakes race.
(e) A horse may not start in a stakes race unless:
  (1) the nominating, sustaining, entry, and starting fees have been paid in full by cash, cashier's check, certified check, or money order on or before the time specified in the conditions of the race; or
  (2) the amount of the applicable fees are on account with the horsemen's bookkeeper at the time the fees are due as specified by the conditions of the race.
(f) Except as otherwise provided by this section for first-time starters, to be eligible to start in a race, a horse must have either started in a race or had a published workout in the 60-day period preceding a race.
(g) To be entered in a race around a turn for the first time, a quarter horse, paint horse, or appaloosa must:
  (1) have a published workout around a turn at a minimum distance of 660 yards in the 60-day period preceding the race; and
  (2) be approved by the clocker, the outrider and, if the horse is worked from the gate, the starter.
(h) To be eligible to start in a race, a horse must be properly tattooed and/or microchipped and the horse's registration certificate, or certificates if dually registered, showing the tattoo number and/or microchip number of the horse must be on file with the racing secretary before scratch time for the race, unless the stewards authorize the certificate or certificates to be filed at a later time.

Source Note: The provisions of this §313.103 adopted to be effective August 30, 1989, 14 TexReg 4123; amended to be effective January 10, 1990, 15 TexReg 28; amended to be effective October 11, 1990, 15 TexReg 5700; amended to be effective August 3, 1992, 17 TexReg 5083; amended to be effective September 1, 1993, 18 TexReg 5397; amended to be effective November 1, 1993, 18 TexReg 7158; amended to be effective November 1, 1994, 19 TexReg 8110; amended to be effective June 1, 1995, 20 TexReg 3661; amended to be effective February 4, 1997, 22 TexReg 953; amended to be effective October 30, 2000, 25 TexReg 10733; amended to be effectiveJuly 12, 2012, 37 TexReg 5131; amended to be effective March 6, 2014, 39 TexReg 1359; amended to be effective April 8, 2019, 44 TexReg 1717