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China has restrictions on geographic information data and uses a data blurring algorithm that adds random offsets to latitude and longitude data for national security purposes.

According to public security regulations, mainland Chinese guests aged under 16 years old accompanied by parents must provide a mainland Chinese ID card or household registration (a birth certificate and household registration are required for infants) when checking in at the hotel. If the abovementioned ID card or household registration cannot be provided, a proof of ID issued by the local police station must be provided.