We microchip each puppy and Buddy has been ofa. certified and sadie is 5 and has never shown any signs of problems which is very good. To certify them you have to do it between 2 and 4 years and it cannot be near a heat, etc. we did not get her until last year we first took her in when she was 3 and we were not looking for another dog to keep at the time so we gave her to some friends who had a male from somewhere down the same line that buddy came from but far enough that he could breed the off spring so we got one of the pups and that was hannah we would up getting sadie back when the couple split up but she was too old by then to have certified but not too old to have pups she has a good family history for healthy hips