The fares on L'Occasionnelle cards may be purchased from ticket booth attendants and vending machines located in metro stations or at points of sale. They allow you to transfer between metro and bus lines.
Using L'Occasionnelle card
Hold your L'Occasionnelle card above the reader in the fare box on the bus or on top of the turnstyle in the métro.
Hold it steady for a few seconds.
Validation of the fare will be confirmed by a green or yellow light and an audio signal (beep).
Keep your card for use as a transfer and as proof of payment.