The National Horsemen's Benevolent & Protective Association (HBPA) filed a Petition for Rulemaking under the Horseracing Integrity and Safety Act (HISA) on Monday, requesting the Federal Trade Commission (FTC) to create no-effect thresholds. A no-effect threshold, also known as a no-effect screening limit or no-effect cutoff, is a laboratory testing detection level below which no owner or trainer will be punished for innocent and pharmacologically irrelevant concentrations of foreign substances that have no effect on a horse, according to the HBPA. Under the petition, the no-effect thresholds would be required...