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Regulations last checked for updates: May 14, 2025
Title 49 - Transportation last revised: Mar 20, 2025
All Titles
Title 49
Chapter A
Part 40
Subpart I - 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 specimen for a drug test?
§ 40.195 - What happens when an individual is unable to provide a sufficient amount of specimen 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 urine 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 problems require corrective action but do not result in the cancellation of a test?
§ 40.209 - What procedural problems do not result in the cancellation of a test and do not require correction?
§ 40.210 - What kinds of drug tests are permitted under the regulations?
authority:
49 U.S.C. 102
,
301
,
322
,
5331
,
20140
,
31306
,
and
source:
65 FR 79526, Dec. 19, 2000, unless otherwise noted.
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