Actually you do need state permits to keep Timber Rattlers and Massasaugas. Not because they're venomous, but because they're considered endangered in this state. But you're right, most cities/towns have ordinance against them. In the town I live in, I would be allowed to keep venomous if I carry at least $100,000.00 in insurance and have the written permission of all neighbors within 100 yards of my property. So in other words, it's not likely to happen.