There are many different certificates. These are older and we can discuss the recent certificates when you call.  I am very discreet due to all the pirating that goes on with the web. Heart certifications are done by a cardiologist.  I believe mine is one of the top in the country. 

The latest heart certifications were done February 6 2012.  

My Sire Charlie has been OFA Heart, Bone and Patella Certified.  By the way, Rainey will be 11 this year and he is still OFA Heart Certified.  Amazing!!!