According to General Administration of Customs (2007) 16 1 Measures of People's Republic of China (PRC) Customs on Import and Export of Printed Materials and Audio-visual Products: (1) Individuals bring or mail books, newspapers and periodicals published in singles into the country, and each person has more than 50 copies; (2) Individuals carrying or mailing a single disc (disc) of audio-visual products into the country, each time exceeding 100 disc; (3) Individuals bring or mail complete sets of books and publications into China, and each person exceeds 10 sets at a time; (four) individuals carrying or mailing complete sets of audio-visual products into the country, each exceeding 10 sets; (5) Other characteristics of the commodity. Under any of the above circumstances, the customs shall go through the relevant formalities for all imported printed matter and audio-visual products according to the imported goods.