MROCC-S Self-Assessment Exam –
Medical Review Officer 2026
Certification Practice
Question 1: Name the official government action that established the
goal of a Federal drug free workplace.
A) Drug-Free Workplace Act of 1988
B) Omnibus Transportation Employee Testing Act of 1991
C) Executive Order 12564
D) Controlled Substances Act
Correct Answer: C
Rationale: Executive Order 12564 was issued by President Ronald Reagan
in 1986, requiring federal agencies to establish programs aimed at
eliminating illegal drug use in the workplace.
Question 2: If DOT requires a drug testing event for a DOT covered
employee that is prohibited by a state law, what is the proper action to
follow?
A) Follow state law to avoid legal liability
B) Proceed as required by DOT
C) Delay testing until conflict is resolved
D) Obtain written legal opinion before proceeding
,Correct Answer: B
Rationale: DOT rules supersede any conflicting state legislation due to
federal preemption, ensuring uniformity across interstate commerce.
Question 3: What organization certifies MRO Assistants?
A) American College of Occupational and Environmental Medicine
(ACOEM)
B) Department of Transportation (DOT)
C) Medical Review Officer Certification Council (MROCC)
D) Substance Abuse and Mental Health Services Administration
(SAMHSA)
Correct Answer: C
Rationale: MROCC is the organization that certifies both Medical Review
Officers and MRO Assistants.
Question 4: The DER is required to take action after receipt of which MRO
report?
A) Written report only
B) Verbal report
C) Electronic report
D) Faxed report
Correct Answer: B
Rationale: The Designated Employer Representative (DER) must take
immediate action upon receiving a verbal report from the MRO before
receiving written confirmation.
,Question 5: Who bears the primary responsibility of establishing and
maintaining a drug free workplace policy and program that is compliant
with applicable regulations and best industry practices?
A) The Medical Review Officer
B) The Employer
C) The Designated Employer Representative
D) The Laboratory
Correct Answer: B
Rationale: The employer has ultimate responsibility for establishing,
implementing, and maintaining a compliant drug-free workplace program.
Question 6: DER's are defined as:
A) An employee who collects urine specimens
B) An employee authorized to remove employees from safety-sensitive
duties and make required testing decisions
C) The MRO's administrative assistant
D) A laboratory certification official
Correct Answer: B
Rationale: The DER is an employee authorized by the employer to take
immediate action to remove employees from safety-sensitive duties and
make required decisions in the testing process.
, Question 7: What one piece of paper must the MRO/MRO A have in their
possession before any DOT result is released to the employer?
A) The laboratory certification document
B) The employer's drug-free workplace policy
C) Any legible donor signed copy of the CCF
D) The chain of custody form from the collector
Correct Answer: C
Rationale: The MRO must have a legible, donor-signed copy of the
Custody and Control Form (CCF) before releasing any DOT result to the
employer.
Question 8: What type of error will cause a DOT test to be cancelled?
A) Any minor paperwork error
B) An error that has a significant adverse effect on the right of the
employee to have a fair and accurate test
C) Missing the employee's middle initial
D) A misspelled employer name
Correct Answer: B
Rationale: Only errors that significantly affect the employee's right to a
fair and accurate test are considered "fatal flaws" requiring test
cancellation.
Question 9: Who may cancel a DOT test result?
A) The Employer
B) The Collector
Medical Review Officer 2026
Certification Practice
Question 1: Name the official government action that established the
goal of a Federal drug free workplace.
A) Drug-Free Workplace Act of 1988
B) Omnibus Transportation Employee Testing Act of 1991
C) Executive Order 12564
D) Controlled Substances Act
Correct Answer: C
Rationale: Executive Order 12564 was issued by President Ronald Reagan
in 1986, requiring federal agencies to establish programs aimed at
eliminating illegal drug use in the workplace.
Question 2: If DOT requires a drug testing event for a DOT covered
employee that is prohibited by a state law, what is the proper action to
follow?
A) Follow state law to avoid legal liability
B) Proceed as required by DOT
C) Delay testing until conflict is resolved
D) Obtain written legal opinion before proceeding
,Correct Answer: B
Rationale: DOT rules supersede any conflicting state legislation due to
federal preemption, ensuring uniformity across interstate commerce.
Question 3: What organization certifies MRO Assistants?
A) American College of Occupational and Environmental Medicine
(ACOEM)
B) Department of Transportation (DOT)
C) Medical Review Officer Certification Council (MROCC)
D) Substance Abuse and Mental Health Services Administration
(SAMHSA)
Correct Answer: C
Rationale: MROCC is the organization that certifies both Medical Review
Officers and MRO Assistants.
Question 4: The DER is required to take action after receipt of which MRO
report?
A) Written report only
B) Verbal report
C) Electronic report
D) Faxed report
Correct Answer: B
Rationale: The Designated Employer Representative (DER) must take
immediate action upon receiving a verbal report from the MRO before
receiving written confirmation.
,Question 5: Who bears the primary responsibility of establishing and
maintaining a drug free workplace policy and program that is compliant
with applicable regulations and best industry practices?
A) The Medical Review Officer
B) The Employer
C) The Designated Employer Representative
D) The Laboratory
Correct Answer: B
Rationale: The employer has ultimate responsibility for establishing,
implementing, and maintaining a compliant drug-free workplace program.
Question 6: DER's are defined as:
A) An employee who collects urine specimens
B) An employee authorized to remove employees from safety-sensitive
duties and make required testing decisions
C) The MRO's administrative assistant
D) A laboratory certification official
Correct Answer: B
Rationale: The DER is an employee authorized by the employer to take
immediate action to remove employees from safety-sensitive duties and
make required decisions in the testing process.
, Question 7: What one piece of paper must the MRO/MRO A have in their
possession before any DOT result is released to the employer?
A) The laboratory certification document
B) The employer's drug-free workplace policy
C) Any legible donor signed copy of the CCF
D) The chain of custody form from the collector
Correct Answer: C
Rationale: The MRO must have a legible, donor-signed copy of the
Custody and Control Form (CCF) before releasing any DOT result to the
employer.
Question 8: What type of error will cause a DOT test to be cancelled?
A) Any minor paperwork error
B) An error that has a significant adverse effect on the right of the
employee to have a fair and accurate test
C) Missing the employee's middle initial
D) A misspelled employer name
Correct Answer: B
Rationale: Only errors that significantly affect the employee's right to a
fair and accurate test are considered "fatal flaws" requiring test
cancellation.
Question 9: Who may cancel a DOT test result?
A) The Employer
B) The Collector
