Subpart I - Problems in Drug Tests

40.191 What is a refusal to take a DOT drug test, and what are the consequences?
40.193 What happens when an employee does not provide a sufficient amount of urine for a drug test?
40.195 What happens when an individual is unable to provide a sufficient amount of urine for a pre-employment, follow-up, or return-to-duty test because of a permanent or long-term medical condition?
40.197 What happens when an employer receives a report of a dilute specimen?
40.199 What problems always cause a drug test to be cancelled?
40.201 What problems always cause a drug test to be cancelled and may result in a requirement for another collection?
40.203 What problems cause a drug test to be cancelled unless they are corrected?
40.205 How are drug test problems corrected?
40.207 What is the effect of a cancelled drug test?
40.208 What problem requires corrective action but does not result in the cancellation of a test?
40.209 What problem requires corrective action but does not result in the cancellation of a test and do not require correction?