For the most part, I think NCRS records are accurate but there are definitely errors. Ive had a couple recently. Most obvious is a report I received on a local sold Z from a small town next to me. NCRS report says correct dealer and zone numbers, but dealer name is not correct. This town, Winchester, IN, only had 1 Chevy dealership, Geyer. I know the salesman who sold it, same guy that sold ZL1 #68 and I have docs and contacted NCRS but they were not interested in correcting. Another 69 Z, sold new in AL, I have the correct dealer name that matches NCRS info and report, but they will not send new report with the dealer name on it, even though there are other reports with that dealers info and the same zone codes etc. I think its a great tool, but far from ironclad, which could be bad when trying to help validate other docs that may be with a car.