What do you mean by endorsement once every three months and once a year?

Legal analysis: There is only one difference between them, only the validity period of the endorsement is different. An annual round-trip endorsement is valid for one year; A three-month round-trip endorsement is valid for three months. Once every three months, that is, the endorsement can be made once within three months; And once a year means that you can go once in one year.

Legal basis: Law of the People's Republic of China on Exit and Entry Administration Article 1 Citizens of China who travel between the mainland and the Hong Kong Special Administrative Region and the Macao Special Administrative Region, and citizens of China who travel between the mainland and the Taiwan Province region shall apply for a pass according to law and abide by the relevant provisions of this Law. Specific management measures shall be formulated by the State Council. Interim Measures for the Administration of China Citizens Travelling to and from Hong Kong or Macao for Private Affairs Article 3 Mainland citizens travelling to and from Hong Kong and Macao for private purposes shall pass through the designated ports on the strength of a passport to and from Hong Kong and Macao issued by China's public security organs; Returning to the mainland can also pass through other ports open to the outside world. Designated ports: Shenzhen to Hong Kong and Gongbei to Macau.