Steve,
Currently redbellies aren't regulated in Maryland. All "aquatic" reptiles are supposed to be under the Fisheries department, as opposed to any endangered or "terrestrial" reptiles that are covered under Wildlife and Heritage in DNR. That means that bog turtles, eastern spinies, and common maps (endangered in MD), box turtles, wood turtles, and spotted turtles (basically terrestrial and species of special concern) are covered under DNR. Everything else is supposed to be under Fisheries, but the only ones that are regulated are terrapins and snapping turtles, because they are used as food items. The redbellies, muds, musks, and painteds in MD fell through the cracks. DNR has been telling us for two years now that they will rewrite thier regs, and I think this year they might actually do it, to include those "aquatic" species that aren't coverd right now.
It IS legal to harvest terrapins in MD during the season, if you have a valid commercial fishing license. Usually only two or three fishermen a year report it, so likely more are doing it but not reporting it.
Katrina