I took the course back in 1991 and have the certificate. I moved to MD in 2007 and since I did not have a motorcycle then or was planning on buying one, I did not apply for the motorcycle license even though I was told my certificate was valid. Moved to PA 2 years ago and bought my motorcycle 3 months ago. When I went to apply for my PA license I was told my certificate was not valid and I have to take the course again. Already signed up to retake it in October. Funny thing is that I went as an observer to the course couple of weeks back and is the same course I took in '91. PA must be special...