From the thread on the Virginia Tech student killings I have compiled the relevant law. It is complicated and not located in one law or regulation. Two laws and three regulations are involved and are to be put together to form the contours of the prohibitions depending on the state.

2) National Forest lands: 36 C.F.R. § 261.8 Refers to Title 18. Chap. 44 § 930. & Title 18. Chap. 44 § 922. U.S. Forest Service allows its lands to be administered by State Game Departments through agreements. 36 C.F.R. § 241.2 Cooperation in wildlife management. The Virginia Department of Game and Inland Fisheries regulation on U.S. Forest lands. 4VAC15-40-60. Hunting with dogs or possession of weapons in certain locations during closed season.