No State shall, without the Consent of the Congress, lay any Imposts or Duties on Imports or Exports, except what may be absolutely necessary for executing its inspection Laws: and the net Produce of all Duties and Imposts, laid by any State on Imports or Exports, shall be for the Use of the Treasury of the United States; and all such Laws shall be subject to the Revision and Controul of the Congress.

• Overview of the Import-Export Clause
• Historical Background on the Import-Export Clause
• Import-Export Clause Generally
• Whether a Good Qualifies as an Import or Export
• Whether a Charge Qualifies as an Impost or Duty
• State Inspection Charges