I live in the UK and have been driving for 50 years. Once the law said '3 years seizure-free' and that was a real pain but then it was changed to 1 year, maybe 15 years ago? I have full TC seizures with no warning, but always first thing in the morning, so I developed a habit of giving myself an extra hour in the morning, just to make sure I was OK. Licences are restricted to 3 years after which you have to reapply. I never had any difficulties with the authorities. After 5 years you can apply for a 'til 70' licence. Ironically, by the time I was SF for 5 years, I was 67, so it made no difference! I am happy to say that by being utterly strict with my meds, I have been SF for 8 years and counting..

Here in the UK it's also a trust thing, but you are supposed to voluntarily surrender your licence after a seizure. The medical team at the licensing authority (DVLA) will then assess your fitness to drive. In my case (full tonic-colonic) it's at least one year but still depends on your history. And then you get a licence for 3 years and have to reapply. I am lucky, as I have now been seizure free for the last 10 years.

I’ve been seizure free just shy of 2 months shy of 2 years (not counting a seizure during a video EEG). My previous neurologist told me not to drive for two years, which I haven’t explained well to my current one (I haven’t seen him much though), so he may think I’m odd because the law is only 6 months. I decided to go with the waiting because I don’t have much of an aura. (As a side note the production manager at my previous job would have preferred I not go onto the production floor alone because I had a seizure there - completely unrealistic and difficult given my career).
Anyway, my license has lapsed, and now I’ll have to take the WHOLE test again- ugh.

I had my licence revoked for two years due to two colonic seizures and de ja vous episodes.
Since then the law has changed and I’m allowed to drive even though I still get de ja vous episodes very rarely.

In the states of Colorado and Oklahoma, your license will be suspended for 6 months after a grand mal. After the suspension, the DMV (Department of Motor Vehicles) must have documented proof that your doctor believes it's safe for you to drive, and then they will decide