UPDATE: letters unnecessarily cap'd:
A
C
E
C
B
W
(CBW usually stands for Chemical (and) Biological Weapons)
Not sure about the ACE part yet
Export Compliance Acronyms and Terms
ACE
Automated Commercial Environment. A single window platform.
CBW
Chemical & Biological Weapons. A Reason for Control on the Commerce Control List (CCL).
http:// www. traliance.com/export-compliance-acronyms-and-terms/