The National Development and Reform Commission and other three departments issued a notice on issuing the 'Guidelines for the Construction of National Data Infrastructure.' Establish a highly efficient, convenient, and trustworthy data circulation mechanism to promote large-scale, low-cost, and secure free flow of data. Support the construction of enterprise trusted data spaces, industry trusted data spaces, and city trusted data spaces, and explore the establishment of personal trusted data spaces and cross-border trusted data spaces. Support industries and cities with a good foundation, favorable conditions, and strong willingness to take the lead in pilot construction. Encourage industries and localities to actively explore the construction of new technological facilities such as blockchain networks and privacy protection computing platforms. Support localized exploration of data interconnection, data Components, and other data circulation utilization facilities construction. Support the building of a public service platform for data circulation and Trade. Support the exploration of infrastructure for cross-border data flow. Establish standards and rules for data circulation access, and encourage the exploration of data circulation security assurance technologies, standards, and solutions.