Pennsylvania Equine Toxicology and Research Laboratory

The Horseracing Integrity and Welfare Unit (HIWU) has granted a temporary stay of enforcement to connections in six pending total carbon dioxide (TCO2) cases, all of which are out of Pennsylvania. In total, 11 of the 14 pending and resolved TCO2-related cases reported since the advent of the Horseracing Integrity and Safety Act (HISA) have concerned horses that ran in Pennsylvania. Of the three other TCO2-related cases, one ran in California and two were out of Ohio. When asked about the reason behind the temporary stay of enforcement, HIWU spokesperson...