Section 30B(1) in The Kerala General Sales Tax Act, 1963
(1)When a vehicle or vessel carrying goods from any place outside the State and bound for any place outside the State passes through the State, the owner or driver or person in charge of such vehicle or vessel shall obtain a transit pass in the prescribed form for such goods from the officer-in-charge of the first check post after his entry into the State and deliver it to the officer-in-charge of the last check post before his exit from the State.
