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Updated August 2026 There has been significant discussion throughout the drug and alcohol testing industry about the U.S. Department of Transportation's move toward oral fluid drug testing. This has also created some understandable confusion. Has DOT approved oral fluid testing? Yes. Can DOT-regulated employers begin replacing urine drug tests with oral fluid testing today? Not yet. The distinction is important for employers, Designated Employer Representatives (DERs), collec

When an employee receives a positive drug or alcohol test, refuses a test, or otherwise violates a workplace drug and alcohol policy, one of the first questions that should be answered is: Was this a DOT violation, a non-DOT violation, or are multiple workplace requirements involved? This distinction is important because DOT and non-DOT cases are not governed by the same requirements. DOT SAP Cases A DOT violation involves an employee subject to federal Department of Transpor