Payment of road-user charge
12.—(1)  The driver of a motor car in respect of which a road-user charge referred to in rule 11 is payable must, when leaving Singapore by way of a relevant checkpoint, insert the vehicle entry card in relation to that motor car into a card machine at the relevant checkpoint so that such road-user charge may be deducted from the stored value of the card.
(2)  Upon completion of the transaction referred to in paragraph (1), the driver may obtain a receipt setting out particulars of the transaction from a designated terminal of the Authority at the relevant checkpoint.
(3)  Where the vehicle entry card or card machine is defective, the road-user charge must be paid in such manner as the Registrar considers appropriate.
(4)  The Registrar may, in such circumstances as the Registrar considers appropriate, permit the road-user charge to be paid in any other manner.