(a) Exempted from this policy are the following:
(1) The control and regulation by the United States, in the area in which an international convention or treaty applies, of the taking of those species and families of fish and wildlife expressly named or otherwise covered under any international treaty or convention to which the United States is a party;
(2) Any species of fish and wildlife, control over which has been ceded or granted to the United States by any State; and
(3) Areas over which the States have ceded exclusive jurisdiction to the United States.
(b) Nothing in this policy shall be construed as affecting in any way the existing authorities of the States to establish annual harvest regulations for fish and resident wildlife on Federal lands where public hunting, fishing or trapping is permitted.