Oklahoma's mental health system is centralized and primarily state funded.  Federal funding from various sources comprise the majority of the rest of the budget.  Medicaid is the most important non-appropriated funding source for individual client services.  In recent years, federal categorical grants, which are generally awarded for a specific project and are time limited, have increased dramatically and currently account for 4.6% of the budget while federal block grants have decreased in both actual dollars and as a percent of the budget.