5.9 Tactical Monitoring of MNPS and RVSM Approvals 5.9.1 Experience with the monitoring process indicates that a proportion of GNEs and other operational errors are attributable to aircraft operating in MNPS/RVSM Airspace without the required approvals. It was for this reason that into make random checks more effective, the NAT SPG introduced a programme of tactical monitoring to help identify aircraft operating within MNPS Airspace without the required approval. In 1997, this procedure was extended to RVSM approvals, and currently Canada, Icelandand the United Kingdom participate in this programme. Pilots who are uncertain of or are unable to confirm their approval status, are issued with a clearance to operate outside MNPS/RVSM Airspace and a report is forwarded to the CMA for followup action. 5.10