---
title: "NORTH ATLANTIC HIGH LEVEL AIRSPACE (NAT HLA) — aviation glossary — OnlyPlanes"
description: "That volume of airspace (as defined in ICAO Document 7030) between FL 285 and FL 420 within the Oceanic Control Areas of Bodo Oceanic, Gander Oceanic, New York Oceanic East, Reykjavik, Santa Maria, and Shanwick, excluding the Shannon and Brest Ocean Transition Areas."
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  "og:title": "NORTH ATLANTIC HIGH LEVEL AIRSPACE (NAT HLA) — aviation glossary"
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Operations

# NORTH ATLANTIC HIGH LEVEL AIRSPACE (NAT HLA)

TERM · Operations

At a glance

## Meaning of NORTH ATLANTIC HIGH LEVEL AIRSPACE (NAT HLA)

That volume of airspace (as defined in ICAO Document 7030) between FL 285 and FL 420 within the Oceanic Control Areas of Bodo Oceanic, Gander Oceanic, New York Oceanic East, Reykjavik, Santa Maria, and Shanwick, excluding the Shannon and Brest Ocean Transition Areas.

### More about NORTH ATLANTIC HIGH LEVEL AIRSPACE (NAT HLA)

That volume of airspace (as defined in ICAO Document 7030) between FL 285 and FL 420 within the Oceanic Control Areas of Bodo Oceanic, Gander Oceanic, New York Oceanic East, Reykjavik, Santa Maria, and Shanwick, excluding the Shannon and Brest Ocean Transition Areas. ICAO Doc 007 North Atlantic Operations and Airspace Manual provides detailed information on related aircraft and operational requirements.

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