Learn how DOT random drug and alcohol testing works, current random testing rates, consortium requirements, owner-operator rules, and common compliance mistakes. A complete guide for DOT-regulated employers, DERs, and safety managers.

Learn what happens during a DOT audit, what records auditors review, common compliance mistakes, and how employers can stay audit-ready. A complete guide to DOT compliance, FMCSA audits, FTA audits, and drug and alcohol testing program management.

Learn the difference between oral fluid and urine drug testing, including detection windows, accuracy, DOT oral fluid testing regulations, observed collections, and how employers can determine which testing method is best for their workplace drug testing program.