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2026 season is open · National Exam · April 10–19, 2026 · see the timeline →

Tag: Usnco Registration

  • USNCO Registration Guide for the 2026-2027 Season

    Registration for the 2026-2027 US National Chemistry Olympiad opens on November 1, 2026. This guide clarifies eligibility rules, coordinator communication strategies, and verified student pathways.