What is a possible consequence for failing to secure a medical certificate before renewing a driver's license?

Failing to secure a medical certificate before renewing a driver's license can indeed lead to ineligibility for renewal. A medical certificate is often required to ensure that a driver meets the necessary health and fitness standards to operate a vehicle safely. Without this document, the licensing authority may deem the individual unfit to hold a driver's license, thereby preventing any renewal from occurring.

In this context, the other consequences may not apply as directly. Licenses being expired typically refers to licenses that have not been renewed by the expiration date, rather than a direct result of lacking a medical certificate. Restrictions on a license could apply if a medical issue was identified but does not pertain to the failure to provide a certificate itself. Fines and penalties are generally associated with violations of traffic laws or regulations rather than lack of documentation required for license renewal. Therefore, ineligibility for renewal stands out as the most appropriate consequence related to the absence of a medical certificate.