A.            Anabolic Steroids

(1)            The use of one of four approved anabolic steroids shall be permitted under the following conditions:

(a)            Not to exceed the following permitted urine or plasma threshold concentrations:

(i)   Stanozolol (Winstrol) – 1 ng/ml in urine or 100 pg/ml in plasma

(ii) Boldenone (In male horses other than geldings; including free boldenone and boldenone liberated from its conjugates)—15 ng/ml in urine or 25 pg/ml in plasma

(iii)         Nandrolone – 1 ng/ml in urine or 190 pg/ml in plasma

(iv)         Testosterone

1.     in geldings—20 ng/ml in urine or 25 pg/ml in plasma

2.     in fillies and mares—55 ng/ml urine or 25 pg/ml in plasma.

(b)           Any other anabolic steroids are prohibited to be administered.

(c)            The presence of any one or more of the four approved anabolic steroids above the approved thresholds is not permitted.

(d)           Post-race urine or plasma samples collected from intact males must be identified to the laboratory.

(e)            Any horse to which an anabolic steroid has been administered in order to assist in the recovery from an illness or injury may be placed on the veterinarian’s list in order to monitor the concentration of the drug in urine. Once the concentration is below the designated threshold the horse is eligible to be removed from the list.