Here is a list of Goverment Acronyms that might help the realism in your local Delta Green game.

Government Acronyms:

(All of these Government Acrony were taken from the National Computer Security Center NCSC-TG-011 Ver.1)

ADP Automatic Data Processing
AIS Automated Infomation System
ASD Assistan Secretary of Defense
AUTODIN Automated Digital Network

BI Background Investigation

C Confidential
C&A Cerification and Accreditation
COMPUSEC Computer Security
COMSEC Communications Security
COTS Commercial-Off-The-Shelf
CPU Central Processing Unit
CSS Central Security Service
C3I Command, Control, Communications, And Intelligence
CSSI Computer Security Subsystem Interpretation

DAA Designated Approving Authority
DAC Discretionary Access Control
DCA Defense Communications Agency
DDN Defense Data Network
DIA Defense Intelligence Agency
DISNET Defense Integrated Secure Network
DOD Department of Defense
DODD Department of Defense Directive
DOS Denial of Service

E3 End-to-end Encryption
ENQ Enquiry
EPL Evaluated Products List

FIPS PUB Federal Information Processing Standards Publication
GOSIP Government OSI Profile

I&A Identification and Authentication
INFOSEC Information Security
IPC Inter-Process Communication
ISO International Standards Organization
ISSO Information System Security Officer

JCS Joint Chiefs of Staff

LAN Local Area Network

MAC Mandatory Access Control
MLS Multilevel Secure
MOA Memorandum of Agreement
MOR Memorandum of Record

N Not Classified but Sensitive
NACSI National Communications Security Instruction
NCSC National Computer Security Center
NDI Non-Development Item
NIU Network Interface Unit
NSA National Security Agency
NSAD Network Security Architecture and Design
NSAP Network Service Access Point
NTCB Network Trusted Computer Bace

OSI Open System Interconnection
OT&E Operational Test And Evaluation

PDS Protected Distribution Syster
PDU Protocol Data Unit (a.k.a. packet, datagram)
POSIX Portable Operaring System Interface for Computer
Environments

RFP Request for proposal
RI Rick Index

S SECRET
SBI Special Background Investigetion
SCI Special Compartmented Information
SDNS Secure Data Network System
SH System High
SIOP-ESI Single Integrated Operational Plan-Extremely Sensitive
Information
ST&E Security Test and Evaluation
STS Single Trusted System

TCB Trusted Computing Base
TCP/IP Transmission Control Protocol/Internet protocol
TCSEC Trusted Computer System Evalution Criteria
TEMPEST (Not an acronym)
TNI Trusted Network Interpertation
TNIEG TNI Environments Guideline
TS TOP SECRET
TSAP Transport Service Access Point

WAN Wide Area Network