Practice Quiz

CME Certified Federal Medical Examiner

Category - Driver Identification and History

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According to CFR 391.41(b)(10) regulations, can an individual who has a known history of Daltonism be certified?
  1. No, this person has a color vision deficiency which is a disqualifying condition.
  2. Yes, if this person can recognize traffic signal colors as a minimum.
  3. Yes, Daltonism is a genetic disorder that has no effect on driving ability.
  4. No, this person has a total color blindness which is disqualifying.
Explanation
Answer: B - Yes, if this person can recognize traffic signal colors as a minimum.

This is the correct answer because according to CFR 391, individuals with a color vision deficiency can be certified if they can distinguish between traffic control signals and devices showing standard red, green and amber. This is regardless of any other color perception deficiency that they may have as a result of their condition.
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