Yes. Part of the terms of ARD are that you must not receive additional convictions within the stated probationary period, which varies from county to county. Once additional charges are brought within 10 years of the ARD participation, there is the strong possibility that the prosecution will treat the charges that led to ARD participation as a technical conviction, allowing them to list it as a “prior offense,” in many cases.
This risk is why it is important to not automatically assume ARD is the best course. It is so important to work with a Pennsylvania DUI defense lawyer, especially if this isn’t your first charge in the past 10 years.