Hetland
Contributor
It's different by state. Florida is 9 miles, Alabama (and I think Louisiana) are 3 miles. Not sure about Mississippi.
The State/Federal/International lines may be irrelevant too, especially when you're talking about fishing/hunting. For example, if you leave Florida and go into Federal waters, and then come back into Florida waters, you're still bound by the most restrictive (either Federal or Florida) bag limits. If you never leave Florida waters, you're simply bound by Florida limits. Once you touch Federal water, you're bound by those rules, even if you do all of your hunting in state waters.
The State/Federal/International lines may be irrelevant too, especially when you're talking about fishing/hunting. For example, if you leave Florida and go into Federal waters, and then come back into Florida waters, you're still bound by the most restrictive (either Federal or Florida) bag limits. If you never leave Florida waters, you're simply bound by Florida limits. Once you touch Federal water, you're bound by those rules, even if you do all of your hunting in state waters.