The Horseracing Integrity and Safety Authority (HISA) will begin using "can't-race" flags to enforce its existing Racetrack Safety and Registration regulations beginning on Mar. 27, 2023. Covered Persons and Horses who are not in compliance with HISA's Racetrack Safety and Registration rules, which went into effect on July 1, 2022, will be at risk of being unable to race until they comply with the rules. In order to be in full compliance with the Racetrack Safety and Registration rules: -Covered Persons must ensure that they and their Covered Horses are...