When did the black household registration in Huai 'an City, Jiangsu Province begin?

It's already been processed. There are no longer any preconditions for registering an account.

Opinions of the General Office of the State Council on Solving the Registration Problem of Unregistered Persons

Second, handle non-household registration according to law.

(4) Persons whose accounts have been cancelled after being declared missing or dead. If a person reappears after being declared missing or dead by the people's court according to law, he or his guardian may apply for restoring the registration of permanent residence by virtue of the effective judgment of the people's court to cancel the declaration of missing (death).

(five) rural personnel who have been cancelled due to marriage. Rural workers whose original accounts have been cancelled due to marriage, who have not settled in other places after investigation and verification by the public security organs, may apply for the restoration of permanent residence at the place where the original accounts have been cancelled. After the registration of permanent residence is resumed, those who meet the conditions for settlement of their current residence can move into permanent residence for registration.

(six) the account migration certificate is lost or exceeds the validity period. If the account migration certificate is lost or exceeds the validity period, the non-registered personnel may apply to the public security organ where it is issued for replacement or renewal of the account migration certificate, and the account shall be registered with the replacement or renewal of the account migration certificate. College graduates who do not meet the current household registration policy in the place where they moved in can apply for the restoration of permanent residence in their place of origin, and other personnel can apply for the restoration of permanent residence in the place where they moved out.

(7) Illegitimate children of China citizens, foreigners without registered permanent residence and stateless persons. China citizens, foreigners and stateless persons born out of wedlock in China, who have not obtained the nationality of other countries, or their guardians with the nationality of China, can apply for registration of permanent residence on the basis of the medical certificate of birth, parents' explanation of the birth out of wedlock and the household registration book of one of our citizens. If a medical certificate of birth is not obtained, a paternity test certificate issued by a qualified appraisal institution is required.

(8) Other persons without registered permanent residence. Persons who have no registered permanent residence for other reasons, or units and individuals who undertake guardianship duties, may apply for registration of permanent residence after investigation and verification by the public security organs in conjunction with relevant departments.