Originally Posted by bmwe92fan

The codes aren't really necessary to get for anyone -- but they definitely can save you time at immigration and customs -- my Japanese wife uses VJW every time we come back (we are back now) -- and she used it last week when we arrived. Think of it more as an electronic version of all the paper we used to have to fill out as that's really what it is now... Scan your passport, scan the QR code, and walk out the automated gates.