Once a person signs up for an EZ-Pass Massachusetts transponder, they can typically expect to receive it in the mail within seven to ten business days. It is important to note that processing times may vary depending on various factors such as demand and any potential delays in the postal system. After the application is processed, the transponder will be mailed to the provided address. Some individuals may choose to sign up for E-ZPass through participating retail locations, which may provide immediate access to a transponder. Once the transponder is received, it will be necessary to activate it before use. For the most accurate and up-to-date information, it may be helpful to review the relevant details on the current website or check for any announcements regarding processing times or delays.