B or 4A906.c. BIS is including ECCN 4D906 to your CCL to regulate “software” “specifically built” or modified with the “advancement” or “manufacturing” of commodities controlled by 4A906.b or 4A906.c. b. Semiconductor wafer fabrication equipment made for ion implantation and acquiring any of the following: Rather then go into detail, http://www.innerwestpropertyinspections.com.au