I don't know why they wouldn't be.
There might have been some new importation regulations, but that shouldn't affect you if you buy captive bred (which I would suggest anyway). Lots of sites sell them (bugs in cyberspace and ken the bug guy come to mind), and you can always check the classifieds at arachnoboards.
My first exotic invert was an emperor scorpion, he was a great pet. It only stung me once, and it was essentially a bee sting; it quit hurting after about 10 minutes.
Good luck with getting your parents to allow you to get one.