never heard of "classification lights", but over a certain size [depending on the jurisdiction, usually based on width] there's normally 3 in the center a few inches apart called marker lights to indicate height, and one as near to the widest outside points as possible, called clearance lights - ones at the front are always yellow now but the front clearance lights at one time were green - ones at the back are always red .... you should check the Kansas MV code, it'll be specified
Bill
