The national indian gaming commission commission an independent agency within interior created by igra has authority to regulate class ii gaming but not class iii gaming by issuing and enforcing gaming standards minimum internal control standards for gaming the commission does however play a role in class iii gaming. Igra the primary federal statute governing indian gaming provides a statutory basis for the regulation of indian gaming tribes states interior and the commission have varying roles in indian gaming this testimony highlights the key findings of gaos june 2015 report gao 15 355. Indian gaming regulation and oversight by the federal government states and tribes amazonca united states government accountability office books. Indian gaming federal state and tribal regulation and oversight 14000 judith torres editor series government procedures and operations bisac gam004000 over the past 25 years indian gaming has become a significant source of revenue for many tribes reaching 28 billion in fiscal year 2013 the indian gaming regulatory act igra the primary federal statute governing indian gaming