Travellers must notify their airline companies/carrier about their travel plans before they arrive. The airline companies/carrier then report the visitors to the Chinese Frontier Inspection Organisation to ensure that they can go through the immigration formalities successfully.
During the 72-hour period, travellers are not allowed to leave the city where they got their visa-free transit stay permit. Consequently, they have to depart from the same airport as they arrived (for example, if they arrived to Beijing they cannot leave from Shanghai even if Shanghai has the same policy).
During the 144-hour period, the foreign visitors can travel within the administrative regions of Shanghai, Jiangsu and Zhejiang, but cannot leave for other cities.
Passengers must carry their valid passports and certificates during their stay in China.