Hmmm, I'm a bit puzzled.
I guess that the authorities main concern is to forsee (and prevent) incapacitation at the wheel, stick or yoke. Fair enough in insulin controlled diabetes.
I'm trying to work out why type II diabetics would be more at risk of this.
Ketoacidosis is unlikely. And it's onset is likely to be slow.
Hypoglycaemia isn't an issue with dietary control and metformin, and I've never known it with sulphonylureas. (eg gliclazide).
So, I'm puzzled, what's the issue.
(It's an important point- as we lower the threshold for diagnosis, and we continue to play on x-boxes and eat supersized take away's, it'll affect more and more of us.)