The Arkansas Racing Commission on Saturday unanimously adopted a handful of amendments that clear the way for external, non-invasive treatments on race day, including chiropractic work. The changes go into effect immediately. \nThe issue of chiropractic work on race day was first raised in late January, when Ms. Good Cat, a horse trained by Larry Jones, was scratched after a backstretch monitor came upon the filly receiving such a treatment on race day. Prior to Saturday, only Lasix and magnetic therapy blankets were permissible race-day treatments in Arkansas. \nJones, who faced no sanctions as a result of the scratch of Ms. Good Cat, addressed the commission last month and asked for clarification on race-day treatments in Arkansas. Commission officials, stewards, horsemen and representatives of Oaklawn Park met to discuss the issue last week. \no Also at the meeting Saturday, the commission said discussions concerning an increase in losing mount fees for Arkansas would be ongoing between the Jockeys' Guild and the Arkansas Horsemen's Benevolent and Protective Association over the weekend. The commission must approve any change in fees.