If you have diabetes and it is being controlled by diet and/or insulin pills, there is no issue. If you have diabetes and you are on insulin by injection, pump, etc., you are restricted to drive a CMV within state lines only. You can’t haul hazardous materials or transport passengers (motor coach or bus).
For other limitations you can search the regulations at (https://www.fmcsa.dot.gov/medical/driver-medical-requirements/driverexemption-programs).
Starting November 17, 2018 The FMCSA revises its regulations to permit individuals with a stable insulin regimen and properly controlled insulin-treated diabetes mellitus (ITDM) to be qualified to operate commercial motor vehicles (CMVs) in interstate commerce. Previously, ITDM individuals were prohibited from driving CMVs in interstate commerce unless they obtained an exemption from FMCSA. This rule enables a certified medical examiner (ME) to grant an IDTM individual a Medical Examiner’s Certificate (MEC), MCSA-5876, for up to a maximum of 12 months.
For Further Information Contact:
Ms. Christine A. Hydock, Chief, Medical Programs Division,
FMCSA, 1266 New Jersey Avenue SE
Washington, D.C. 20590,0001
or by email (firstname.lastname@example.org)