If you have it for private use NO CDL is required in most states, Oklahoma is one of those states. The A3 models have limited top speed(45ish) with their 4 speed tranny, and the Cummins engine used have very mixed reviews. The A3's do have power steering and better brakes compared to the A2 models along with a few other creature comforts, but lose the multi-fuel option. The M35A3's demand premium prices over their M939 series 5 Ton counterparts, though the market has come down some over the last few years. The production numbers on the M35A3's are low compared to other series.