The Congress finds that - (1) numerous Indian tribes have become engaged in or have licensed gaming activities on Indian lands as a means of generating tribal governmental revenue; (2) Federal courts have held that section 81 of this title requires Secretarial review of management contracts dealing with Indian gaming, but does not provide standards for approval of such contracts; (3) existing Federal law does not provide clear standards or regulations for the conduct of gaming on Indian lands; (4) a principal goal of Federal Indian policy is to promote tribal economic development, tribal self-sufficiency, and strong tribal government; and (5) Indian tribes have the exclusive right to regulate gaming activity on Indian lands if the gaming activity is not specifically prohibited by Federal law and is conducted within a State which does not, as a matter of criminal law and public policy, prohibit such gaming activity.