What is a Dac report. How to get a free DAC for truck drivers. How to file dispute for DAC for your truck driver job. How to fix your DAC. Even if you don't have a reason to believe there is any bad information on your DAC you still need to know what companies are seeing about you. Who knows in a couple of months your company could go out of business or you get laid off. You are entiled to one free copy of your DAC report a year.