Now Seeking Owner Operators!. H - Hazardous Materials Endorsement. N - Tanker Vehicles Endorsement. T - Doubles or Triples Endorsement. X - Combo for HAZMAT and Tank Vehicles Endorsement. Drive your business forward with TForce Freight. Your Truck. Your Business. Backed by a National Network. As a solo Owner Operator in the TForce Freight Supplemental Linehaul Fleet, you run consistent LTL linehaul freight between service centers across the country, on your schedule. Paid loaded and dispatched …