On October 1, 2012 the Canadian Pari-Mutuel Agency (CPMA) released a Memorandum to the Canadian racing industry regarding its review of practices associated with the release of residue from official samples.

The Ontario Racing Commission (ORC) has an established practice of advising all Ontario racing industry licensees that they have a responsibility to closely review all memos released by the CPMA, and to keep up to date on the Schedule of Prohibited Drugs.