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Id	Values
008019	QUALIFIER FOR FOLLOWING CENTRE IDENTIFIER Code/Flag Figure Description Status 0 RESERVED 1 ATS (AIR TRAFFIC SERVICE) UNIT SERVING FIR (FLIGHT INFORMATION REGION) 2 FIR (FLIGHT INFORMATION REGION) 3 UIR (UPPER FLIGHT INFORMATION REGION) 4 CTA (CONTROL AREA) 5 VAAC (VOLCANIC ASH ADVISORY CENTRE) 6 MWO (METEOROLOGICAL WATCH OFFICE) ISSUING SIGMET 15 MISSING VALUE

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