On our buses, look for the farebox, located by the bus operator. It accepts passes, bills and coins (exact change only please).
On MetroRapid, there's a farebox for pre-purchased passes by the back doors. If you want a Day Pass, ask the operator for one before inserting your fare.
For convenience, you can also use our CapMetro App to purchase, store and manage any of our passes. When you board one of our vehicles, just show an operator or fare inspector your pass on the app or scan the QR code (on MetroRapid).