http://dave.net.nz/toyspd/imvda_emmisions.pdf
I have also included a (bad quality) pic of my RunX chassis plate so you can see where this code can be found. As you can see, the model for the RunX is a TA-ZZE123-AHFQF-A, The important bit being the TA at the beginning, meaning that it conforms to the emmisions standard known as "Japan 00/02"
Toyota seem to be pretty good at making it easily recognisable, other manufactures it is somewhat harder.
I assume that at the auctions that dealers get stuff from they are told this when buying?
