省，局
●(the) Department of State / the State Department
[DOS,DS] 国務省
●Department of Justice [DOJ] 司法省
・Federal Bureau of Investigation [FBI] 連邦捜査局
●Department of Defense [DOD] 国防総省
●Department of the Treasury [DOT] 財務省
●Department of Health and Human Services [DHHS]
保健福祉省
・Food and Drug Administration [FDA] 食品医薬品局
●Department of Commerce [DOC] 商務省
●Department of Labor [DOL] 労働省
●Department of Transportation [DOT,DT] 運輸省
●Department of Agriculture [USDA ,DA, DOA] 農務省
●Department of the Interior [DI,DOI] 内務省
●Department of Housing and Urban Development [HUD]
住宅都市開発省
●Department of Energy [DE,DOE,DoE] エネルギー省
●Department of Education [DOE,DoE] 教育省
●Department of Veterans Affairs 復員軍人省
●Department of Homeland Security [DHS]
国土安全保障省（9/11後設置）
独立連邦行政機関
・Environmental Protection Agency [EPA] 環境保護庁
・Central Intelligence Agency [CIA] 中央情報局
・National Aeronautics and Space Administration
[NASA] 国立航空宇宙局
・United States National Archives and Records
Administration [NARA] 公文書記録管理局
・United States Postal Service [USPS]
アメリカ郵便公社
理事会・委員会
・Federal Reserve System [FRS]
連邦準備制度（中央銀行に相当）
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