A Primer on Attending a USEF Convention By Kim MacMillan I’d lay odds that almost none of us have ever contemplated the matrix of organization, planning and administration it takes to provide a centerline for us to trot down or a course to jump at our favorite shows and events. The United States Equestrian Federation (USEF, our national governing body for equestrian sport in the U.S.A.) just takes our dues, records our show points and e-mails us a magazine every so often, right? Well, actually, there’s a whole lot more to running the horse show world in our country