Medical Requirements Practice Questions
5 free sample cdl questions about medical requirements, with the correct answer, a full explanation, and a source reference for each. Want to test yourself instead of just reading the answers? Find your state's free practice test.
1. Why is a valid medical certificate generally required to hold a CDL?
A valid medical certificate confirms a driver meets minimum physical and health standards necessary to safely operate a commercial motor vehicle.
Source: National: FMCSA (49 CFR)
2. What does the federal vision standard for CDL holders generally require?
CDL holders must meet a federal minimum for distant visual acuity in each eye, which can be met with glasses or contact lenses.
Source: National: FMCSA (49 CFR)
3. What does the federal hearing standard for CDL holders generally require?
The federal hearing standard can be met either without assistance or with a hearing aid, as long as the driver meets the specified threshold.
Source: National: FMCSA (49 CFR)
4. What can a driver with a condition that doesn’t strictly meet a physical qualification standard sometimes obtain?
Federal rules include an exemption or waiver process for certain conditions, allowing certification under specific monitored circumstances rather than an automatic disqualification.
Source: National: FMCSA (49 CFR)
5. Why must a CDL driver disclose relevant medical conditions to the medical examiner during certification?
Full disclosure lets the medical examiner properly evaluate whether the driver meets all federal physical qualification standards, not just vision and hearing.
Source: National: FMCSA (49 CFR)