From Feb 4th, 2016, MNPS (Minimum Navigation Performance Specifications) Airspace is being dumped as a term (no loss, really), and replaced by the much more user friendly NAT High Level Airspace or NAT HLA. MNPS first came into being in 1977, and this change is significant in that the requirements for approval to enter the new NAT HLA are updated – you must now have RNP4, or RNP10. Also, the rest of the Atlantic welcomes Bodø Oceanic to the fray – it joins Shanwick, Gander, Reykjavik, New York, and Santa Maria to make up the new NAT HLA, which keep the original vertical profile of FL285-FL420.
In short, that’s all you need to know. You should read our International Ops Notice 01/16 for the full story.
New NAT HLA High Level Airspace Map
More on the topic:
- More: Timeline of North Atlantic Changes
- More: NAT CPDLC Route Uplinks: Crew Confusion and Errors
- More: New NAT Doc 007: North Atlantic Changes from March 2026
- More: What’s Changing on the North Atlantic?
- More: Spoofed Before the NAT? Here’s What to Do
More reading:
- Latest: Paris Ramp Checks: Illegal Charters and Tax Avoidance
- Latest: Middle East Airspace – Current Operational Picture
- Latest: Greenland NAT Alternates: March 2026 Update
- Safe Airspace: Risk Database
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Thank you Mark.
Very good work by you.