Which of the following is NOT a requirement for a driver to maintain eligibility?

To understand which option is not a requirement for a driver to maintain eligibility, it's essential to focus on the specific requirements outlined by the FMCSA for commercial driver's license holders.

Wearing corrective lenses, skill performance evaluation certificates, and wearing a hearing aid are all requirements under specific medical standards. For example, drivers with vision impairments must wear corrective lenses to meet the visual acuity standards, and drivers with certain physical conditions may need to obtain a skill performance evaluation certificate to demonstrate their ability to safely operate a commercial vehicle. Additionally, those who are hearing impaired are required to wear hearing aids to meet the hearing standards necessary for safe driving.

In contrast, while regular drug testing is a critical aspect of ensuring driver safety and compliance with federal regulations, it is not a requirement for individual eligibility. Rather, the regular drug testing is part of the ongoing oversight and policy adherence that employers must follow to maintain a safe work environment for all drivers. The eligibility of individual drivers primarily revolves around medical and skill-based requirements, making regular drug testing less pertinent in determining initial or continued eligibility. Thus, the focus on drug testing is essential for workplace safety, but it does not directly influence an individual driver's eligibility status.