DOT Drug & Alcohol Testing Programs 2 — Questions and Answers
Question 1: Under DOT regulations, what is the minimum alcohol concentration level that triggers a requirement for an employee to be immediately removed from safety-sensitive functions?
- 0.02
- 0.04 (Correct answer)
- 0.08
- 0.10
Correct answer: 0.04
An alcohol concentration of 0.04 or greater requires immediate removal from safety-sensitive duties under 49 CFR Part 40.
Question 2: Which federal agency publishes the Mandatory Guidelines for Federal Workplace Drug Testing Programs that DOT testing must follow?
- DEA
- FMCSA
- SAMHSA (Correct answer)
- OSHA
Correct answer: SAMHSA
SAMHSA (Substance Abuse and Mental Health Services Administration) publishes the Mandatory Guidelines that govern DOT-mandated drug testing procedures.
Question 3: A driver who tests positive for drugs must complete which of the following before returning to safety-sensitive duties?
- A written apology to the employer
- Evaluation by a Substance Abuse Professional (SAP) (Correct answer)
- A 30-day suspension period only
- A second drug test with a different specimen
Correct answer: Evaluation by a Substance Abuse Professional (SAP)
A positive drug test requires the driver to be evaluated by a Substance Abuse Professional (SAP) before returning to safety-sensitive functions.
Question 4: Under DOT post-accident testing rules for CMV drivers, which condition always requires alcohol testing regardless of fault?
- Any accident involving a CMV
- An accident resulting in a fatality (Correct answer)
- An accident causing property damage exceeding $5,000
- An accident occurring on an interstate highway
Correct answer: An accident resulting in a fatality
An accident that results in a human fatality always triggers mandatory post-accident alcohol and drug testing under 49 CFR 382.303.
Question 5: What is the maximum time allowed after a post-accident for a DOT-required alcohol test to still be considered valid?
- 2 hours
- 4 hours
- 8 hours (Correct answer)
- 12 hours
Correct answer: 8 hours
Alcohol testing must be completed within 8 hours of the accident; after that, employers must cease attempts and document why testing wasn't done.
Question 6: In DOT drug testing, what is the role of the Medical Review Officer (MRO)?
- To conduct the actual urine specimen collection
- To review lab results and verify positive, adulterated, or substituted results (Correct answer)
- To determine whether an employee should be terminated
- To select which employees are subject to random testing
Correct answer: To review lab results and verify positive, adulterated, or substituted results
The MRO is a licensed physician who reviews laboratory results and contacts donors to determine if there is a legitimate medical explanation for non-negative results.
Question 7: Under 49 CFR Part 382, how long must employers retain records of a verified negative drug test result?
- 1 year (Correct answer)
- 2 years
- 5 years
- 10 years
Correct answer: 1 year
Verified negative drug test results must be retained for a minimum of 1 year under DOT recordkeeping requirements.
DOT Drug & Alcohol Testing Programs 2
Under DOT regulations, what is the minimum alcohol concentration level that triggers a requirement for an employee to be immediately removed from safety-sensitive functions?