If you can, wait until your DL is up for renewal. When the operators license went into effect, I made the mistake of taking the test and having it added to my license right then (this was around April or so that year). Paid for the operator's test and a new DL. I didn't even pay attention to my DL and had to renew it when it expired in June. I could have waited until June then did both at the same time and not paid for my DL twice. And, of course, the ever so nice people at the DL office didn't bother to tell me either.