>The state of FL is the only one I know
of where you will stop at the bourder (or else they will run you down) and you
will have to show a health certificate to get in.
CA does that, too.
I've also been stopped in Oklahoma (they have
"roving check points" and when they set one up at a rest area, they wave in
all passing horse trailers--I understand several states do this, but that's the
only one I've personally experienced), Oregon (years ago, in my previous
incarnation as an Idaho resident), and Washington. All pretty simple when
your paperwork is in order.
And of course, the scope of this hasn't covered
Canadian border crossings--fresh in my mind since we are just home from there
and about to do it again. The Canadian papers are a bit trickier as one's
vet has to send them to a federal vet for endorsement (for which, of course, the
federal vet collects money), and they are pretty picky. I did have a
twitchy US inspector on our way home from our last trip think that our papers
were amiss, and telephone his superior--he was apparently told in short order
that what we had was what we were supposed to have, since he said, "Yes,
sir. Yes, sir," and hung up the phone, handed us our paperwork back, said
"Have a nice day," and waved us on through. <g> I WAS
surprised that the Canadian border people did not inspect our hay--which
was duly weed-free and appropriately tagged--but again, better safe than
sorry...