During your ride on Public Transportation, sometimes you might be asked to "transfer" buses to get to your destination. This is done because the bus that you are currently on does not go all the way to where you are going, but the next bus might. Whenever you need to transfer buses, you will be given a transfer from the driver.
How Transfers Work
Transfers are good for 2.5 hours after they are given to you. They will be filled out by the driver, or sometimes they will be electronically stamped from the bus. They will have the value of fare that you paid the driver on it along with other information.