There are several types of "hunter", or hunt seat, classes.
Equitation: Judge the rider's ability to communicate with the horse.
Flat Classes: Judge the horse's movement and manners on the flat. Jumping is not included.
Over-fences classes: Judge the horse's movement, manners, way of going, and jumping form over a course of jumps.
"Handy" classes: A class which combines elements of flat and over-fences classes, often with elements that are reminiscent of field hunting. For example; the rider may be asked to dismount and lead the horse over a small fence after completing a course.
Pleasure classes: Unlike the flat and over-fences classes, the horse's movement is not as important as its manners, temperament, and suitability for the rider.
Conformation or Model classes: The horse is judged on conformation and movement, which should be suitable for that of a hunter. Unlike the above classes, a model class has no mounted exercises, and the horse is presented for judging without a saddle.
Classes may be further divided by the horse or rider's experience, the height of the horse or pony, and the age of the rider.