This final rule revises the Indian Housing Block Grant (IHBG) Program allocation formula authorized by section 302 of the Native American Housing Assistance and Self-Determination Act of 1996, as amended (NAHASDA). Through the IHBG Program, HUD provides federal housing assistance for Indian tribes in a manner that recognizes the right of Indian self-determination and tribal self-government. HUD negotiated this final rule with active tribal participation and using the procedures of the Negotiated Rulemaking Act of 1990. The regulatory changes reflect the consensus decisions reached by HUD and the tribal representatives on ways to improve and clarify the current regulations governing the IHBG Program formula.