What proof is there that I completed the Drinking Driver Program and who receives it?

A "Notice of Completion" will be sent to the Department of Motor Vehicles when you successfully complete the program. The DMV will then determine if you are eligible to be reinstated or not. For example, if there was a refusal to take a chemical test, you would have to wait a full year before being eligible to obtain your full license back (assuming this was first time refusal).