It sounds like your friends answer needs to be: a) he is a registered Brittany with AKC and he is a hunting dog AND b)The owner is a member of a sporting/hunting club (DU/ Delta/ Quail Forever/...) and he has not sold more than 12 intact dogs over the last 12 months.
THEN he needs to get the dog registered with the county or city in which he lives and put the tag on the dog's collar.