The Bureau of Industry and Security (BIS) controls the export of dual-use and less sensitive military items through the Export Administration Regulations (EAR), including the Commerce Control List (CCL). BIS is proposing to add new Export Control Classification Number (ECCN) 4A006 in order to control quantum computers and related electronic assemblies and components including specified qubit devices and circuits and quantum control components and measurement devices. This rule also proposes to control certain associated technology and software for the development and production of these items under ECCNs 4E001 and 4D001, respectively. Quantum computing is expected to have a significant impact in many commercial and military areas, and early implementation of this proposal is warranted. Further, from the international security point of view, its potential to break current encryption schemes has the urgent attention of many governments and military/intelligence organizations around the world.