LWM

Low-Water Mark

USAFE

US Air Forces, Europe

Reg

regulation, includes radio rules

RTCP

Real Time Control Protocol

IPng

Internet Protocol Next Generation

DAB+

Newer DAB standards, not backward compatible

CCMC

Canadian Centre for Maritime Communications

MBR

Master Boot Record (""boot sector"")

RADAR

RAdio Detection And Ranging

IMC

Internet Mail Consortium

DSO

Distinguished Service Order

DARN

(2)Disaster Amateur Radio Network, SoCal 440 MHz system

ELV

expendable launch vehicle

EMMAC

European Multimedia Associations Convention

OSI

Open Systems Interconnection (coincidentally, OSI is by ISO)

AOE

Airport of Entry