Guides

Guides

Long pages that stay current: one subject each, every number with its source and the date it was read, every chart with its data file.

• Generative AI in government858 of 3,611 listed federal AI uses are generative AI; 252 are deployed.[1] What they are for and the rules that apply.Updated 28 October 2026
• AI in the public sectorThe 2025 federal inventory: stages, agencies, topics, and the rules agencies work under.Updated 28 October 2026
• Data science in governmentThe Data Science series 1560, from none in 2021 to 1,216 employees in August 2026,[2] and the law behind it.Updated 28 October 2026
• AI in agricultureThe Department of Agriculture lists 162 of the 3,611 federal AI uses for 2025; 39 are deployed, 17 of them under the Natural Resources and Environment mission area.[1] With USDA's own plan and its inspector general's report.Updated 29 October 2026
• AI in defenseOMB's inventory leaves the Department of Defense out: none of its 3,611 rows is a defense row.[1] What the record holds instead: GAO's counts, the 2023 strategy, the AI office and the AI sections of three defense acts.Updated 29 October 2026
• AI in food safetyFour federal bureaus with food safety or inspection duties list 40 AI use cases for 2025, 10 deployed; one of the four is mostly animal and plant health, and USDA Food Safety has none deployed.[1] With the FDA's own plans for AI in food safety.Updated 29 October 2026
• AI in government IT and cybersecurity447 of 3,611 listed federal AI uses are filed under IT or cybersecurity; 146 are deployed.[1] What they are, who lists them, and the CISA, NIST and OMB documents that apply.Updated 29 October 2026
• AI in healthHHS lists 447 AI use cases and VA 367 in the 2025 inventory; VA marks 215 of its high-impact.[1] With the FDA list of AI-enabled medical devices.Updated 29 October 2026
• AI in transportationThe Department of Transportation lists 70 AI use cases for 2025, 16 deployed and none high-impact;[1] the crash reports on automated vehicles, and the FAA's AI safety roadmap.Updated 29 October 2026

Next

More guides follow, one field at a time, each rebuilt from public data rather than reposted.

Sources

1. Office of Management and Budget, 2025 Federal Agency AI Use Case Inventory, file of individually reported use cases (3,611 rows; the repository says "as of April 13, 2026"), counted by this site: 2025_individually_reported_AI_use_cases.csv. Read 28 October 2026.
2. U.S. Office of Personnel Management, Federal Workforce Data, employment snapshot files for September 2020 to September 2025 (version 4 each) and August 2026 (version 1), from data.opm.gov/api/v1/files/employment, counted by this site. Read 28 October 2026.