ECCN or Export Control Classification Number is an alphanumeric designation (e.g., 1A984 or 4A001) used in the Commerce Control List (CCL) to identify items for export control purposes. The Export Administration Act (EAA) of 1979 (P.L. 96-72) provided legal authority to the President to control U.S. exports for reasons of national security, foreign policy, and/or short supply. An ECCN categorizes items based on the nature of the product, i.e. type of commodity, software, or technology and its respective technical parameters.