—(1) A Class 4, 4A or 5 driving licence shall cease to be valid and shall be of no effect upon the holder thereof attaining the age of 65, 66, 67, 68 or 69, unless —
the Deputy Commissioner of Police has, within 2 months before the holder attains any such age, received a copy of the holder’s medical report issued by a registered medical practitioner certifying that he is physically and mentally fit to drive a motor vehicle; and
where required by the Deputy Commissioner of Police, the holder has passed the Proficiency Driving Test within 3 months of attaining any such age.
(2) The Deputy Commissioner of Police may, no earlier than 2 months before the holder attains every age specified in paragraph (1), require the holder, at his own expense, to be certified physically and mentally fit to drive a motor vehicle by —
such registered medical practitioner as or from such class of registered medical practitioners as the Deputy Commissioner of Police may specify in that requirement; or
a registered medical practitioner of the holder’s choice if the Deputy Commissioner of Police does not so specify.