What TXiceman said is correct, based on GVWR.... the GVWR of my truck on the door sticker is 14k... what it "could" weigh fully loaded. As others said I could take 15-foot, 30,000 lb rated trailer completely empty and it would qualify while my 9800 rated, 33-foot travel trailer does not.
Since I already has my appointment scheduled I went to try it, and yeah they kicked me out because my combined weight didn't qualify. So, I'll just have to schedule it for soon after I take delivery of the new rig.