The National Environmental Policy Act of 1969 (83 Stat. 852) shall not be construed, in whole or in part, as requiring the preparation or submission of an environmental impact statement for withdrawals, conveyances, regulations, orders, easement determinations, or other actions which lead to the issuance of conveyances to Natives or Native Corporations, pursuant to the Alaska Native Claims Settlement Act, or this Act. Nothing in this section shall be construed as affirming or denying the validity of any withdrawals by the Secretary under section 14(h)(3) of the Alaska Native Claims Settlement Act.