To receive a permit for keeping poisonous creatures, isn't there some sort of inspection agency that comes to inspect your facilities, as well as your safety measures? Anytime a poisonous creature is going to be handled there should be anti-venom within reach, but aren't most anti-venoms kept at only the high-end hospitals in the country?
your local cites list will tell you if it is legal to own venemous snakes, or what measures need to be taken to get a permit. It's not as easy as applying and getting it, there's usually a long waiting period and heavy fees. When I got my rattlesnakes (eastern diamond backs) and my bush vipers, I waited nearly a year to get the go ahead