Medical Review Officer (MRO) Study Guide With
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
2026
Which statement is correct about a canceled test?
A. The employer must treat a canceled test the same as a negative test.
B. The donor must be tested again if the test was a post-accident test.
C. The donor must be tested again if the test was a follow-up test.
D. If the test was canceled through no fault of the donor, the canceled
test will count towards the minimum number of random tests the
employer is required to perform. - ANSWER---C. The donor must be
tested again if the test was a follow-up test.
Who may become an MRO? - ANSWER---Licensed physicians such as
a Doctor of Medicine or Doctor of Osteopathy
Laboratory guidelines for analyzing dot specimens are developed by
who? - ANSWER---Health and Human Services (HHS)
Regulatory guidelines for DOT drug and alcohol testing are referred to
as - ANSWER---49 CFR Part 40
Specifies the DOT agencies covered by the Federal testing regulations
(1991) - ANSWER---Omnibus Transportation Employee Testing Act
The role of the MRO was first defined by. - ANSWER---HHS as
directed by Reagan's Executive Order 12564
, Medical Review Officer (MRO) Study Guide With
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
2026
Drug testing requirements for Federal employees were established by
who and when - ANSWER---Reagan's Executive Order 12564 in 1986
What are the requirements to be an MRO? - ANSWER---Pass a
certification exam.
Take an MRO course.
Be a licensed physician.
Omnibus Transportation Employee Testing Act - ANSWER---In 1991,
Congress passed the __________________ to specify the DOT agencies
covered by the federal testing regulations.
Which of the following are Not MRO responsibilities?
A. Review results of blind quality control samples
B. Monitor errors made by collectors
C. Give official interpretations of DOT regulations to employers
D. Act as a "gatekeeper" for drug test results
E. All of the above are MRO responsibilities - ANSWER---Give official
interpretations of DOT regulations to employers
What agencies fall under DOT Regulations: - ANSWER---FAA
USCG
FMCSA
, Medical Review Officer (MRO) Study Guide With
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
2026
PHMSA
FTA
FRA
What 2 government agencies are authorized to interpret federal D&A
regulations - ANSWER---Office of Drug and Alcohol Policy and
Compliance (ODAPC) and the DOT Office of General Counsel (OGC)
True/False
MRO is required to review all drug and alcohol test results - ANSWER--
-False
What does SAP stand for? - ANSWER---Substance Abuse Professional
Which is not one of the topics covered in 49 CFR Part 40?
A. Urine collection personnel
B. Medical Review Officer and the Verification Process
C. Role of the Medical Review Assistant
D. Problems with Drug Tests
E. Public Interest Exclusion
F. All the above are covered in 49 CFR Part 40 - ANSWER---C. Role of
the Medical Review Assistant
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
2026
Which statement is correct about a canceled test?
A. The employer must treat a canceled test the same as a negative test.
B. The donor must be tested again if the test was a post-accident test.
C. The donor must be tested again if the test was a follow-up test.
D. If the test was canceled through no fault of the donor, the canceled
test will count towards the minimum number of random tests the
employer is required to perform. - ANSWER---C. The donor must be
tested again if the test was a follow-up test.
Who may become an MRO? - ANSWER---Licensed physicians such as
a Doctor of Medicine or Doctor of Osteopathy
Laboratory guidelines for analyzing dot specimens are developed by
who? - ANSWER---Health and Human Services (HHS)
Regulatory guidelines for DOT drug and alcohol testing are referred to
as - ANSWER---49 CFR Part 40
Specifies the DOT agencies covered by the Federal testing regulations
(1991) - ANSWER---Omnibus Transportation Employee Testing Act
The role of the MRO was first defined by. - ANSWER---HHS as
directed by Reagan's Executive Order 12564
, Medical Review Officer (MRO) Study Guide With
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
2026
Drug testing requirements for Federal employees were established by
who and when - ANSWER---Reagan's Executive Order 12564 in 1986
What are the requirements to be an MRO? - ANSWER---Pass a
certification exam.
Take an MRO course.
Be a licensed physician.
Omnibus Transportation Employee Testing Act - ANSWER---In 1991,
Congress passed the __________________ to specify the DOT agencies
covered by the federal testing regulations.
Which of the following are Not MRO responsibilities?
A. Review results of blind quality control samples
B. Monitor errors made by collectors
C. Give official interpretations of DOT regulations to employers
D. Act as a "gatekeeper" for drug test results
E. All of the above are MRO responsibilities - ANSWER---Give official
interpretations of DOT regulations to employers
What agencies fall under DOT Regulations: - ANSWER---FAA
USCG
FMCSA
, Medical Review Officer (MRO) Study Guide With
QUESTIONS AND CORRECT ANSWERS LATEST UPDATE
2026
PHMSA
FTA
FRA
What 2 government agencies are authorized to interpret federal D&A
regulations - ANSWER---Office of Drug and Alcohol Policy and
Compliance (ODAPC) and the DOT Office of General Counsel (OGC)
True/False
MRO is required to review all drug and alcohol test results - ANSWER--
-False
What does SAP stand for? - ANSWER---Substance Abuse Professional
Which is not one of the topics covered in 49 CFR Part 40?
A. Urine collection personnel
B. Medical Review Officer and the Verification Process
C. Role of the Medical Review Assistant
D. Problems with Drug Tests
E. Public Interest Exclusion
F. All the above are covered in 49 CFR Part 40 - ANSWER---C. Role of
the Medical Review Assistant
