Tester's bill amends the Indian Reorganization Act to provide the Interior Department the authority to take land into trust for all tribes - reversing the Supreme Court's ruling in Carcieri v. Salazar. In 2009, the Supreme Court issued a decision that prevents the Interior Department from taking land into trust for tribes recognized after 1934 - the year the Indian Reorganization Act was enacted. The Supreme Court decision created two classes of tribes, those recognized before and after 1934. This decision has caused major delays and unnecessary costs for tribes in their efforts to put tribal lands into trust.