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**CHINESE RVSM FLIGHT LEVEL ALLOCATION SCHEME**

China has implemented RVSM in Metric level system At 16:00 UTC, November 21st, 2007 between 8900 meters (29100 feet) and 12500 meters (41100 feet), inclusive.

After RVSM implementation, 300-meter vertical separation is applied between 600 meters and 8400 meters (maintain current situation unchanged); 500-meter vertical separation is applied between 8400 meters and 8900 meters; 300-meter vertical separation is applied between 8900 meters and 12500 meters; 600-meter vertical separation is applied above 12500 meters. Airspace from 8900 meters to 12500 meters is defined as RVSM Airspace. The Flight Level Allocation Scheme (FLAS) is attached.

Meanwhile, in order to ensure that the vertical separation between two pairs of flight levels is equal or above 1000 feet after converting metric flight level into feet and rounding the result by 100 feet:

For Metric flight level from 8900 meters to 10700 meters, the corresponding flight level in feet shall be rounded down to the nearest 100 feet. For instance, 8900 meters (namely 29199 feet) shall be rounded down to 29100 feet;

For Metric flight level from 11000 meters to 12500 meters, the corresponding flight level in feet shall be rounded up to the nearest 100 feet. For instance, 12500 meters (namely 41010 feet) shall be rounded up to 41100 feet.

Thus, between 8900meters and 12500 meters, all the actual vertical separations during flight for Boeing, Airbus and internationally manufactured aircraft will be 1000 feet.

Detailed RVSM metric flight level option: fly eastward: 8900, 9500, 10100, 10700, 11300, 11900, 12500 meters; fly westward: 9200, 9800, 10400, 11000, 11600, and 12200 meters.

Corresponding feet flight levels: fly eastward: 29100, 31100, 33100, 35100, 37100, 39100, 41100 feet; fly westward: 30100, 32100, 34100, 36100, 38100, and 40100 feet.