And any PICKUP truck and trailer also. By today's standards it's easy to crest 26k. Our single rear wheel F350 is 11k, 44' trailer is 18k. Note, a SRW F350 diesel is rated to tow up to 21k (goose neck or 5th wheel). Amazing. And before someone asks, no I dont have a CDL.
Any tractor/trailer over 26k CGVWR requires a CDL.