兴趣爱好For the immigrants coming to China, it is very important to acquire the CHD before they can apply for the immigration papers. The CHD is an essential document required by the Chinese immigration authorities for the immigrant to know the place they are going to live in China and for them to know about the Chinese community in their new country. The China health Declaration form includes all information about the invitee. It includes the name, address, country of issuance, date of birth, document number and gender.