He'll be fine to go renew now for a standard DL. You only need written test if it's over a year expired. If over 5 years expired you have to road test too. If he wants the new federally compliant DL, he'll need to take some documents with him. Check out SOA DMV website for those. Also, make an appointment before you go! Same day appointments available.
Thank you Karen...that is good to know.
It is probably the best to contact DMV regards this matter.
Thanks! Your answer is awaiting moderation.