Definition
An ICAO airspace region designation referring to the central eastern portion of the Pacific Ocean. CEP is used in flight planning, oceanic route structures, and ATC documents to identify operations within this defined area of Pacific oceanic airspace, which lies between the U.S. West Coast and the Hawaiian Islands.
Plain English
A label for a specific chunk of ocean airspace between the U.S. mainland and Hawaii. When you see CEP on a chart or in a flight plan, it tells you which part of the Pacific the route or procedure applies to.
Context Anchor
Seen in aviation glossaries, weather briefings, oceanic planning, and references to large Pacific operating areas.
Why Pilots Care
CEP routes provide structured paths with ATC separation services, reducing risk and workload on long over-water flights.
Intuition Check
CEP is not an airport, navigation fix, or piece of equipment. It is a regional label for part of the Pacific Ocean.
Example Sentence 1
The crew reviewed the CEP track procedures before departing Los Angeles for Honolulu.
Example Sentence 2
After departure the crew received clearance to proceed via the CEP tracks toward Honolulu.