The Regulations on the Administration of Credit Information Industry has corresponding provisions on this:

Article 16 The retention period of personal bad information by credit reporting agencies is 5 years from the date of termination of bad behavior or incident; More than 5 years, should be deleted.

During the retention period of bad information, the information subject may explain the bad information, and the credit reporting institution shall record it. Information subjects can inquire their own information from credit reporting agencies.

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Regulations on the Administration of Credit Information Industry and other relevant laws and regulations:

Article 25 The Municipal People's Government shall build a public credit information system based on a unified social credit code system, with unified standards and norms, data interconnection and sharing, and hierarchical collaborative management, so as to realize the integrated development of public credit information in the whole city.

Apply modern information technologies such as big data and cloud computing to improve the construction and application level of public credit information system. City, county-level city, District People's government and its relevant departments should improve the incentive mechanism of trustworthiness and disciplinary mechanism of dishonesty, and promote the comprehensive utilization of public credit information.

Article 26? The municipal competent department of credit information shall, jointly with the information providers, formulate and publish the public credit information collection catalogue and specifications according to the relevant provisions of the state and industry standards. The formulation of public credit information collection catalogue and norms shall be open to the public for comments.

Baidu Encyclopedia-Regulations on the Administration of Credit Information Industry