SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-medical-insulin-12-months

A driver whose diabetes is treated with insulin must be medically recertified how often?

At least every 12 months.

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  1. Every 24 months
  2. Every 12 months ✔
  3. Every 3 months

Why: Drivers with insulin-treated diabetes can be certified under a special standard, but they must be re-examined at least every 12 months. The same yearly rule applies to drivers certified under the vision exception.

Huh, didn't know that: Insulin-treated drivers have been able to qualify without an exemption since 2018.

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Why did the doctor carry a red pen? In case they needed to draw blood.
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References

Answer: Every 12 months. Drivers with insulin-treated diabetes can be certified under a special standard, but they must be re-examined at least every 12 months. The same yearly rule applies to drivers certified under the vision exception.

  1. 49 CFR 391.45 Persons who must be medically examined and certified (eCFR) www.ecfr.gov/current/title-49/section-391.45
    Any driver who has diabetes mellitus treated with insulin for control
    Checked 2026-10-10.

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