Posted: Tue Jun 10, 2008 12:28 pm-
Generally speaking any Class A POE will work.
But the fact that most TNs are granted at preclearance on either Canada and Mexico soil or border between Mex and US or Can and US. The FTO @ those borders have more experience. If you have a complicated situation like management consultant, a non US/ Canada degree, or any not straight forward things, you better off go through those borders from Canada.
Although theoretically, it shouldn't matter. But I am always skeptical about doing a TN through an inbound flight from else where other than Mex / Canada. For example, flying inbound from Asia or Europe, you will go through security check point on US soil (when your plane landed on US airport) and those guys do not normally take care of TN.
Does anyone have experience on getting TN through non Canada/Mexico border or Pre-clearance?