US Drug Test Centers is one of the largest drug testing companies in the United States. We have over 20,000 collection sites and drug testing facilities that can provide drug and alcohol testing nationwide. US Drug Test Centers specializes in federal DOT drug testing, non-DOT drug testing, alcohol testing, random consortiums, drug-free workplace programs, and more. Our team of professionals can help you schedule a drug test anywhere in the US by calling our office at 866-566-0261 or you can order a drug test online, 24/7.