Guidance concerning Air Navigation in and above the NAT MNPSA
VERTICAL NAVIGATION PERFORMANCE MONITORING
The vertical navigation performance of operators within NAT MNPS Airspace is monitored
on a continual basis by the NAT CMA. Such monitoring includes both measurement of the technical height- keeping accuracy of RVSM approved aircraft and assessment of collision risk associated with all reported operational deviations from cleared levels. Chapter 10 deals more fully with this matter.
NAT Doc 007