Tibet does not belong to the hard and remote areas classified by the state, but implements the special allowance system for Tibet alone, classifies the categories according to altitude and determines the allowance standards. The higher the altitude, the more the allowance.
Below 4000 meters above sea level, it belongs to the second-class area; 4000 meters to 4500 meters above, belonging to the third category; More than 4500 meters, belonging to the four types of areas.
The average elevation of Milin County in Linzhi, Tibet is 3,700 meters.