(3) A State Government may, by rules made under section 21.-
(a) provide that a specification entitling the holder of a 1[ driving licence] 9[ to drive as a paid employee or to drive a transport vehicle] shall be made in the 1[ driving licence] only by or under the authority of the Regional Transport Authority constituted under Chapter IV,
(b) regulate the submission of applications for such licences to the said authority, 6[ 7[