Directs the Department of Housing and Urban Development to create and publish model zoning guidance and best practices to help States and localities reform zoning so more housing can be built at a range of income levels. The law defines “affordable housing” (housing costs ≤30% of income), requires a public comment process and a task force to shape guidance, mandates a 5-year follow-up report to Congress on adoption and permit impacts, repeals the Regulatory Barriers Clearinghouse, and authorizes $3 million per year for FY2026–FY2030 to carry out the law.