CED   Certified NOAA ENC Distributor

CEVAD   Certified NOAA ENC Value Added Distributor

CRC   Cyclical Redundancy Checksum

ECDIS   Electronic Chart Display and Information System

ENC   Electronic Navigational Chart

IEC   International Electrotechnical Commission

IHO   International Hydrographic Organization

IMO   International Maritime Organization

ISO   International Organization for Standardization

NOAA   National Oceanic and Atmospheric Administration

NOS   National Ocean Service

OCS   Office of Coast Survey

SENC   System Electronic Navigational Chart

SOLAS   Safety of Life at Sea

VAD   Value Added Distributor