Legal analysis: after the "three certificates in one", the unified social credit code is the business license registration number of the merchant. The unified social credit code is represented by 18 Arabic numerals or capital English letters, namely 1 registration management department code, 1 institution category code, 6-digit registration management administrative division code, 9-digit subject identification code and 1 check code.

Legal basis: Measures for the Administration of Registration of Individual Industrial and Commercial Households

Twelfth individuals and business operators themselves are applicants; For a family business, the host operator among the family members is the applicant.

Where an agent is entrusted to apply for registration, change or cancellation of registration, the power of attorney of the applicant and the identity certificate or qualification certificate of the agent shall be submitted.

Article 14 To apply for registration of individual industrial and commercial households, the following documents shall be submitted:

(a) the application for registration of individual industrial and commercial households signed by the applicant;

(2) the identity certificate of the applicant;

(3) Proof of business place;

(4) Other documents required by the State Administration for Industry and Commerce.

Article 30 If the relevant administrative organ notifies the registration authority that the administrative license of individual industrial and commercial households has been revoked or revoked or the validity period of the administrative license expires in accordance with the provisions of Article 24 of the Regulations on Individual Industrial and Commercial Households, the registration authority shall cancel the registration or revoke the business license according to law, or order the parties concerned to handle the registration of change according to law.