Before a few weeks ago I had never heard of OFA certifications, and today while researching the pedigree of my 16 week, old I discovered that her dam was given the rating of "fair", and her sire was not OFA certified but instead had pennhip done with a rating of "excellent". I noticed that with the fair rating breeding permissable but not recommended. The rest of the dogs in the pedigree seem to have rating of good, fair, or moderate. In the end it doesn't really matter, as I would never give my dog back, but should I have any worry of future hip problems? Other than the normal worry of owning a large breed dog of course.