Driving on Insulin

Hi All, Just found out I am Insulin dependant, only a couple of weeks back.
I've been told that I need to check my BS before I drive, and every 2hrs.

They mentioned if the BS was low, I should nt drive.

Its a lot to take in and I cant recall if they said below 5 or below 4 BS not to drive.

I'll ask next time I see them, but that will be a while. Could anyone confirm what the rules are.

Many thanks

Found the info Guess I should of looked harder.

5 or less take a snack before driving 4 or less do not drive