If it “should” be outlawed but isn’t, then it’s not criminal activity, the Teamsters negotiate contracts based on mileage pay. When, at the end of each day, I divide my earnings by the total number hours total on-duty and am satisfied that I’m being compensated fairly I don’t concern myself with how that amount was calculated. It’s typically $7-8 per hour more than if I were paid at our top hourly rate with o/t after 40 hours. Based on what I’ve seen, many more drivers in LTL transfer from city to road than the reverse, so I guess drivers must really enjoy getting cheated by their employers.