A model rule that limits anabolic steroid use to four approved substances was unanimously passed in a committee hearing of the Racing Commissioners International annual conference April 23, highlighting the opening-day morning session of the annual conference of North American regulators in Jackson Hole, Wyo.

The model rule, which will now be sent to the April 24 RCI board of directors meeting for disposition, recommends that regulators push for legislation that would allow for limited sample levels of only four anabolic steroids – stanozolol (Winstrol), boldenone, nandrolone, and testosterone.

Under the rule’s guidelines, all other anabolic steroids would be prohibited. Presently, only Iowa has rules in place for the testing of anabolic steroids in North America, while Europe has been testing for years.

“Historically, in North America, anabolics have not been regulated,” said Scot Waterman, DVM, director of the Racing Medication and Testing Consortium. “Internationally, they have spent a lot of time investigating steroids, and now they are banned. North America is different from the rest of the world