Thanks for these clarifications about YVR-MEX on LA or JL. Darren is right that I was inferring that the validator's response of "valid" applied to the LA code share because I had in mind the information received in a PM from a FT contributor about the LA flights. In checking now what he/she wrote to me in early May, when I expressed doubts about the validity of YVR-MEX, the relevant part of their message stated "YVR-MEX is LAN (not ticketed as yet but MRU BA said ok)". Presumably, it did not get ticketed but if that FTer is currently out there, perhaps they can chime in.