B or 4A906.c. BIS is adding ECCN 4D906 on the CCL to regulate “software” “specifically intended” or modified for the “improvement” or “production” of commodities controlled by 4A906.b or 4A906.c. For these good reasons, BIS provides ECCN 4A906 for the CCL to regulate quantum desktops and linked “Digital assemblies” and https://electricalinspection61592.mdkblog.com/35365107/detailed-notes-on-building-inspection