Alcohol & Drug Testing Requirements Flashcards
7 cards from real Chauffeur License practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Alcohol & Drug Testing Requirements flashcards as text
What is the purpose of a chain of custody form in the DOT drug testing process?
Answer: To track the specimen from collection through laboratory analysis
The chain of custody form documents every person who handles the specimen, ensuring its integrity and legal defensibility from collection through the final result.
When a laboratory confirms a positive drug test result, who receives the report first under DOT procedures?
Answer: The Medical Review Officer (MRO)
Laboratories report positive results directly to the MRO, who then contacts the driver to determine if there is a legitimate medical explanation before reporting to the employer.
Under what circumstances may an MRO report a confirmed positive drug test result as 'negative'?
Answer: When the driver provides a legitimate medical explanation such as a valid prescription
An MRO may verify a result as negative if the driver provides a satisfactory medical explanation, such as a valid prescription for the detected substance.
Under FMCSA rules, within what time limit must an employer attempt a post-accident alcohol test after a qualifying accident?
Answer: As soon as practicable but not after 8 hours have elapsed
FMCSA requires the employer to attempt a post-accident alcohol test as soon as practicable, but the test must not be conducted after 8 hours have elapsed since the accident.
Which federal regulation specifically establishes the procedures for DOT workplace drug and alcohol testing?
Answer: 49 CFR Part 40
49 CFR Part 40 is the DOT procedural regulation that governs how workplace drug and alcohol testing must be conducted across all DOT-regulated transportation modes.
What must an employer verify before allowing a newly hired chauffeur to drive if a prior positive drug test is found in the FMCSA Clearinghouse?
Answer: That the driver completed SAP requirements and has a negative return-to-duty test on record
If a prior unresolved violation is found in the Clearinghouse, the driver must show completion of SAP evaluation and treatment plus a negative return-to-duty test before being allowed to drive.
What is the FMCSA Drug & Alcohol Clearinghouse?
Answer: A secure federal database containing records of commercial drivers' drug and alcohol violations
The FMCSA Drug & Alcohol Clearinghouse is a federal online database that employers must query when hiring new drivers and annually for existing drivers, containing violation records since January 6, 2020.