Originally Posted by C Skip R
Go to your local Customs Office and fill out the paperwork. Basically they call it their interview process. They will issue you the card while your there or at least they did for us. Very simple and well worth having it since all you do is call upon arrival in the states. Anyone traveling with you will need it as well otherwise they may have to report to a customs office.
Forgot you need to call Customs and make an appointment.
Take your passport with you when you do this. The interview is essentially like entering the states through a regular immigration check points plus they ask you a lot of personal questions so they can make sure you are really the person they're talking to on the phone
when you call to check in. It's really a quite painless process. One issue that I had is that they wrote your number on the card with ink that rubbed off. I kept it in my wallet and after a few months could not read the number any more, which required a trip to the cpb office to recover. In any case make a couple of photocopies of the card when you first get it and store them in safe places.