On 9 February 2016, the Commerce Department’s Bureau of Industry and Security (BIS) and the State Department’s Directorate of Defense Trade Controls (DDTC) published companion proposed rules on Military Aircraft and Military Gas Turbine Engines and Related Items. Both the BIS Rule and State Rule are available online. The proposed rules are part of the agencies’ ongoing efforts to enhance and update revisions to USML categories and 600 series ECCNs adopted under the Export Control Reform Initiative. They are intended to ensure that the regulations are clear and do not inadvertently apply to regular commercial items, while achieving the agencies’ export control objectives.