.... and some states have strict laws about bringing in fresh fruit/vegs/plants from other states. California, Hawaii, sometimes Florida, sometimes Arizona (just out of my memory from traveling). This, as Andy said, has nothing to do with import/export financial laws. It has to do with bringing what might be diseased vegetation into a place that has a healthy crop. In other words, you cannot bring an orange you bought in Arizona or Florida into the state of California, and vice versa (unless laws have change, and they might have). I know in Florida when you bought a citrus tree, it was registered to your address, and if something happened with that lot #, the agriculture department would come, dig it up, and destroy it before it could pass on diseases to the orchards and obliterate an entire orange (grapefruit, etc) crop. My sis complained that they confiscated her two orange trees, but there was a grapefruit tree in her yard when she bought the house, and she hated grapefruit. "Why couldn't it have been the grapefruit?" Well, the grapefruit was old and established and been there long before she bought the property! I can remember when we'd cross country by car (something I've done dozens, maybe hundreds, of times in my life) as a kid, it was, pull over at the last rest stop before the state line and eat fruit until you're full, because the rest will be confiscated!