[QUOTE] Well if the web version was using the check digit (checksum) you mentioned in your other post you would think it would also mention the date cut off.[/QUOTE] There's no such thing as it "using the check digit". If the VIN is written correctly, it's a VIN. If it's not, even if only one digit is mistyped, it's a collection of 17 random and meaningless alphanumerics.