I. The director may require with cause any person holding a license to drive motor vehicles or applying for reissue of such license to pass such examination as to the person’s qualifications as the director shall prescribe. Such reexamination may include an examination for visual acuity as prescribed by the director. All license examinations shall be conducted by department of safety personnel. No license shall be reissued to such person or continued in effect until the director is satisfied as to such person’s fitness to drive a motor vehicle. The age of the license holder shall not constitute cause for reexamination under this section.
II. The director may waive reexamination requirements for a driver who previously held a valid commercial driver license and subsequently had that commercial privilege become inactive as a result of the expiration of his or her medical certification and then obtains a valid medical certification within 24 months of entering the inactive status.