The annual NITRD Supplement to the President’s Budget is organized by Program Component Areas (PCAs), where the PCAs are major subject areas for federal IT R&D. PCAs are intended to facilitate budgetary comparisons from year to year in each area. The PCA set does evolve over time, reflecting changes in IT R&D activities at federal agencies and IT R&D priorities of the Administration; * AI budget: not all AI investments are included in PCA tables, only those directly focused on AI. For a full report on AI R&D investments please see AI R&D Investments.

Budget* : FY00-FY09: Estimates, FY10-FY19: Actual, FY20: Estimate, FY21: Request