Drug Tests
Drug testing in the United States began in the late 1980s with the testing of certain federal employees and specified DOT regulated occupations. Drug testing guidelines and processes, in these areas exclusively, are established and regulated require that companies who use professional drivers, specified safety sensitive transportation and/or oil and gas related occupations, and certain federal employers, test them for the presence of certain drugs. These test classes were established decades ago, and include five specific drug groups. They do not account for current drug usage patterns.