In the US you are allowed to drive from 16. He has a latvian license. Probably a dispensation on Rally routes or co-driver drives between stages. My guess however is that they will find a solution that he can get his US drivers license. My guess as well is that he will have in hist contract that he can drive his Polo R5 in Latvia for that championship, but I am not sure about this. I do not know what his contract includes or excludes. But a great opportunity for him to start with a factory driver contract at 17 !!