Prince Trey, Check your account, money order should be on its way!

So I called PLB rentals as per this website... http://www.plbrentals.com/products/products.asp
and the guy was adamant that a PLB (which he will rent for the week for a good price) is NOT an EPIRB. Product is the ACR terafix with GPS, weighs 12 oz. Is this ok to use???
This was so much easier when I had my cheap mini-B that is sitting in my basement and ready to go!
Thanks,
chris