for years true Kobe beef was not allowed to be imported. Last year in Palm Springs at the La Quinta resort, there was a kobe beef appetizer, I inquired (as I always do) if it was waygu, the waiter was very proud to state that it was real kobe, even brought out a certificate explaining that it was true kobe. The food & bev director as well as the chef came out to see how we liked it^

Long way of saying that yes Kobe is allowed to be imported now, I couldn't answer the grade question.