Thank you. I was able to read that the reg's require a review of repairs, modifications, etc. which require looking at the log books to verify the completed work. I was afraid for our fellow aviator that there is no regulatory requirement - Good practice, Yes - but no requirement that the AC or Registration be reviewed by the signing A&P-IA. As you suggest, it is the owner/pilot responsibility to insure the papaerwork is complete. Take care.