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To ensure the fairness, standardization, and seriousness of the NOI competition, and to prevent participants from obtaining eligibility through improper actions such as inter-provincial school transfers, the CCF NOI Competition Committee and the Scientific Committee hereby establish the following supplementary regulations:

During their high school years, participants may represent only one province in the NOI National Competition. Specifically, the province chosen by a participant during their first NOI National Competition in high school shall serve as their fixed represented province and cannot be altered thereafter.

These regulations apply solely to the eligibility of official contestants in the NOI National Competition and shall take effect immediately upon release.

China Computer Federation (CCF)

February 13, 2025