The Congress shall have Power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform throughout the United States;
Clause 2 Borrowing
To borrow Money on the credit of the United States;
ArtI.S8.C2.1 Borrowing Power of Congress
Clause 3 Commerce
To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes;
ArtI.S8.C3.5 Historical Background on the Commerce Clause Cases
ArtI.S8.C3.6 Modern Interstate Commerce Clause Doctrine
ArtI.S8.C3.7 Dormant Commerce Clause
ArtI.S8.C3.9 Commerce With Native American Tribes: Scope of Authority
Clause 5 Standards
To coin Money, regulate the Value thereof, and of foreign Coin, and fix the Standard of Weights and Measures;
ArtI.S8.C5.1 Coinage Power
Clause 6 Counterfeiters
To provide for the Punishment of counterfeiting the Securities and current Coin of the United States;
ArtI.S8.C6.1 Counterfeiting Power
Clause 7 Post Offices
To establish Post Offices and post Roads;
Clause 8 Intellectual Property
To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries;
ArtI.S8.C8.1 Overview of Congress's Power over Intellectual Property
ArtI.S8.C8.2 Historical Background on the Intellectual Property Clause
Clause 9 Courts
To constitute Tribunals inferior to the supreme Court;
ArtI.S8.C9.1 Inferior Federal Courts
Clause 10 Maritime Crimes
To define and punish Piracies and Felonies committed on the high Seas, and Offences against the Law of Nations;
Clause 11 War Powers
To declare War, grant Letters of Marque and Reprisal, and make Rules concerning Captures on Land and Water;
Clause 12 To Raise and Maintain Armies
To raise and support Armies, but no Appropriation of Money to that Use shall be for a longer Term than two Years;
Clause 13 Navy Clause
To provide and maintain a Navy;
Clause 14 Land and Naval Force Rules
To make Rules for the Government and Regulation of the land and naval Forces;
Clause 15 To Call Militias
To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions;
ArtI.S8.C15.1 Congress's Power to Call Militias
Clause 16 Organization of Militias
To provide for organizing, arming, and disciplining, the Militia, and for governing such Part of them as may be employed in the Service of the United States, reserving to the States respectively, the Appointment of the Officers, and the Authority of training the Militia according to the discipline prescribed by Congress;
ArtI.S8.C16.1 Congress's Power to Organize Militias
Clause 17 Enclave Clause
To exercise exclusive Legislation in all Cases whatsoever, over such District (not exceeding ten Miles square) as may, by Cession of particular States, and the Acceptance of Congress, become the Seat of Government of the United States, and to exercise like Authority over all Places purchased by the Consent of the Legislature of the State in which the Same shall be, for the Erection of Forts, Magazines, Arsenals, dock-Yards, and other needful Buildings;–And
