American businesses realize that keeping illegal drugs out of the workplace makes economic sense.
Workers with the lowest participation in drug testing programs have the highest rates of drug usage. Both fields have participation rates significantly lower than the national average and drug usage rates that are markedly higher. On the other hand, the Armed Forces have a participation rate of 100 percent and past-month use below 2 percent. The Department of Transportation oversees the largest drug-free workplace program in the world, affecting approximately eight million U.S. workers. The program goes beyond testing.