The Secretary of the Interior and the Secretary of Agriculture shall each, in cooperation with the State agencies and in accordance with comprehensive plans developed pursuant to section 670h of this title, plan, develop, maintain, and coordinate programs for the conservation and rehabilitation of wildlife, fish, and game. Such conservation and rehabilitation programs shall include, but not be limited to, specific habitat improvement projects and related activities and adequate protection for species of fish, wildlife, and plants considered threatened or endangered.

The Secretary of the Interior shall implement the conservation and rehabilitation programs required under subsection (a) of this section on public land under his jurisdiction. The Secretary of the Interior shall adopt, modify, and implement the conservation and rehabilitation programs required under such subsection (a) on public land under the jurisdiction of the Chairman, but only with the prior written approval of the Atomic Energy Commission, and on public land under the jurisdiction of the Administrator, but only with the prior written approval of the Administrator. The Secretary of Agriculture shall implement such conservation and rehabilitation programs on public land under his jurisdiction.