What ongoing condition requires a yearly medical certification review?

A history of seizures necessitates a yearly medical certification review due to the potential for recurrent seizures, which can pose safety risks, particularly for drivers operating commercial vehicles. The Federal Motor Carrier Safety Administration (FMCSA) guidelines specify that individuals with a history of seizures must be assessed regularly to ensure they remain seizure-free and are medically fit to drive. The medical examiner needs to monitor the individual's condition closely to determine if it is adequately controlled, any medication side effects, and the overall impact on driving capabilities.

Other conditions listed, such as stable diabetes, controlled hypertension, and allergic rhinitis, do not typically require this level of scrutiny unless complications arise or their management changes significantly, making them less critical in terms of safety assessments for commercial driving. As such, the nature of seizures, with their unpredictability and potential to impair safety, justifies the annual review requirement.