On May 29, 2026, the Office of Management and Budget (OMB) proposed sweeping revisions to the rules that govern how federal grant dollars flow to nonprofits, as well as to state and local governments and tribal nations. The OMB Uniform Guidance is the foundational rulebook for federal grantmaking. It governs everything from how nonprofits recover their overhead costs to how federal agencies structure grant announcements. For the tens of thousands of nonprofits that partner with the federal government to deliver services in communities across the country, these rules are the operating conditions that determine whether those partnerships are viable.