Breath Alcohol Tests (BATs) are alcohol screens performed on the ALCOSensor IV Breath Alcohol Testing machine and are conducted by certified Breath Alcohol Technicians. Breath alcohol tests are done to comply with certain Department of Transportation (DOT) regulations on a random basis (just like random drug testing). Many employers also routinely perform a BAT exam as a normal procedure following an on-the-job injury or accident. Breath alcohol test take only a few minutes to conduct and results are immediately available.