Using sample protocols from the transportation and nuclear power industries, this book reviews current federal regulations and mandatory guidelines for federal workplace testing programs and demonstrates practical techniques for specimen collection and laboratory testing. The book compares workplace testing outside the US including protocols, attitude surveys, and legislation from Europe, Australia and South America. Chapters include analytical approaches for sample testing such as radioimmunoassay and enzyme immunoassay, as well as confirmatory testing via quality assurance, calibrators, and controls. The book also offers analytical information for biological matrices other than urine; details the procedures for using hair, oral fluid, and sweat; and examines the physiologic considerations when interpreting alternative matrix test results. Containing numerous tables and figures, expert data, and supported by extensive references, this is a crucial tool for those charged with maintaining a drug-free workplace.