Section 14. Currency of licences to drive motor vehicles

14. Currency of licences to drive motor vehicles .—(1) A learner's licence issued under this Act shall, subject to the other provisions of this Act, be effective for a period of six months from the date of issue of the licence. (2) A driving licence issued or renewed under this Act shall,— (a) in the case of a licence to drive a transport vehicle, be effective for a period of three years: - 1* 2[Provided that in the case of licence to drive a transport vehicle carrying goods of dangerous or hazardous nature be effective for a period of one year and renewal thereof shall be subject to the condition that the driver undergoes one day refresher course of the prescribed syllabus; and;] (b) in the case of any other licence,— (i) if the person obtaining the licence, either originally or on renewal thereof, has not attained the age of[3] [fifty years] on the date of issue or, as the case may be, renewal thereof,— (A) be effective for a period of twenty years from the date of such issue or renewal;or (B) until the date on which such person attains the age of[3] [fifty years], whichever is earlier;