Non-trucking liability insurance provides liability coverage when your tractor is being used off dispatch and not hauling for business—think bobtailing home after a drop in Little Rock, running to a truck wash in Cabot, or deadheading with an empty trailer for personal reasons. Many drivers call it “bobtail insurance,” and in everyday use bobtail insurance and NTL are treated as the same idea: liability for non-business use. Remember, this is third-party liability only; your own rig’s damage is handled by physical damage, and your business-use liability on the road is commercial auto liability within your broader commercial trucking insurance program.