But a couple of hours later, I received a call from the Wood County Sheriff's office. The deputy stated that she was calling to explain that due to the recent prosecution of one or more CHL instructors for improperly-issued certificates, that they were requiring renewal applicants to submit their original training certificates in order to prove that they did not receive it from one of the blacklisted instructors. Apparently they're only doing so for those renewal applicants who are not already in Wood County's system. In my student's case, she applied in Wood County originally with the certificate that I had issued her, so she is good to re-apply without further ado. But it sounds like anyone applying for renewal in Wood County with a CHL issued by another county will be required to produce their original course credentials.
Now, I don't want to tattle on Wood County Sheriff, since in my experience they're typically excellent at the application process and very supportive of citizen carry. But frankly, I don't think this jives with what ORC 2923.125 requires. So, if anyone has the time and inclination to dig further, I'd be interested to see what comes of some follow up.
EDIT: It's right on their website: http://woodcountysheriff.com/concealed-carry/
REQUIRED INFORMATION FOR A RENEWAL APPLICATION.
(If you do not have your original certificate from your CCW training, please call to verify what you will need to bring in.) You must provide previous CCW ID and/or proof of completion of the required CCW training course.