PAST Act

[AI summary unavailable — showing source text] Prevent All Soring Tactics Act of 2013 or the PAST Act - Amends the Horse Protection Act (HPA) to replace the Designated Qualified Persons program responsible for inspecting horses for soring with a new inspection system. (The soring of horses is any of various actions taken on a horse's limb to produce a higher gait that may cause pain, distress, inflammation, or lameness.) Directs the Department of Agriculture (USDA) to prescribe regulatory requirements to license, train, assign, and oversee persons who are to be hired by the management of horse shows, exhibitions, sales, or auctions and are qualified to detect and diagnose sore horses or otherwise inspect horses at such events. Prohibits issuing a license to any person unless such person is free from conflicts of interest. Authorizes USDA to revoke a license for unsatisfactory performance. Requires USDA to give a preference to persons who are licensed or accredited veterinarians in issuing the licenses. Requires USDA to assign USDA-licensed inspectors after receiving notice that management intends to hire the inspectors. Directs an inspector to issue a citation for violations and notify USDA of the violations within five days of…