MROCC-S Self-Assessment Practice Exam Comprehensive
Practice Examination for the Medical Review Officer
Certification Council
Comprehensive Practice Examination for the Medical Review Officer Certification Council – Substance
(MROCC-S) Self-Assessment | 200 Multiple-Choice Questions with Detailed Answer Explanations |
Covers DOT Regulations (49 CFR Part 40), HHS Mandatory Guidelines, Laboratory Processes &
Toxicology, MRO Interview & Verification, Specimen Validity Testing, Adulteration & Substitution,
Split Specimen Procedures, Confidentiality & Recordkeeping, Refusals & Fatal Flaws, DER
Responsibilities, Substance Use Disorders, and Professional Ethics | 100% Pass Guaranteed | Graded
A+
1. Which federal action established the goal of a drug-free federal workplace?
A. Drug-Free Workplace Act of 1988
B. Executive Order 12564
C. Omnibus Transportation Employee Testing Act of 1991
D. Controlled Substances Act of 1970
☑ Correct Answer: B
☑ Explanation: Executive Order 12564, signed by President Ronald Reagan in 1986,
established the goal of a drug-free federal workplace and required federal agencies to
implement drug testing programs for employees in sensitive positions. The Drug-Free Workplace
Act of 1988 (A) applies to federal contractors and grantees. The Omnibus Transportation
, MROCC-S Self-Assessment Practice Exam
Employee Testing Act of 1991 (C) mandated drug and alcohol testing for transportation
employees. The Controlled Substances Act of 1970 (D) classified drugs but did not address
workplace testing.
2. According to 49 CFR Part 40, a Medical Review Officer (MRO) must be a licensed physician
with which degree?
A. MD or DO only
B. MD, DO, or DPM
C. MD, DO, or DC
D. Any licensed healthcare provider
☑ Correct Answer: A
☑ Explanation: Under 49 CFR Part 40, an MRO must be a licensed physician with either a
Doctor of Medicine (MD) or Doctor of Osteopathic Medicine (DO) degree. Podiatrists (DPM),
chiropractors (DC), and other healthcare providers are not qualified to serve as MROs under
DOT regulations. Options B, C, and D are incorrect as they include non-qualified practitioners.
, MROCC-S Self-Assessment Practice Exam
3. A DER is defined as:
A. A laboratory technician who processes urine specimens
B. An employee authorized by the employer to take immediate action to remove employees
from safety-sensitive duties
C. The Medical Review Officer's assistant
D. A Substance Abuse Professional (SAP) who evaluates employees
☑ Correct Answer: B
☑ Explanation: A Designated Employer Representative (DER) is an employee authorized by
the employer to take immediate action to remove employees from safety-sensitive duties and to
make required decisions regarding drug and alcohol testing. Option A describes a lab technician.
Option C describes an MRO assistant (MROA). Option D describes a Substance Abuse
Professional (SAP).
4. What is the proper action when a DOT-required drug test is prohibited by a conflicting
state law?
, MROCC-S Self-Assessment Practice Exam
A. Follow the state law and do not proceed with the test
B. Proceed with the DOT test as federal regulations supersede state law
C. Seek a legal opinion before proceeding
D. Require the employee to sign a waiver
☑ Correct Answer: B
☑ Explanation: Federal DOT regulations (49 CFR Part 40) supersede any conflicting state
or local laws. The MRO and employer must proceed with the required testing as mandated by
federal regulations. Options A, C, and D are incorrect as federal preemption applies.
5. Which of the following is the most commonly recognized laboratory certification
organization for workplace urine drug testing?
A. FDA
B. SAMHSA (NLCP)
C. OSHA
D. DEA