The U.S. National Chemistry Olympiad (USNCO) program is a chemistry competition for high school students. The purpose of the competition is to stimulate young people to achieve excellence in chemistry. The American Chemical Society has sponsored the program since 1984. Local Chemistry Olympiad competitions are held each year in March. Top-scoring students are nominated for the National Competition.

We encourage all high school students in the ACS Joliet area (Will, Kankakee, Kendall, Grundy, and LaSalle Counties) to participate. For more information, contact us at

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The top-scoring student(s) from the local competition will be nominated to take the national exam on April 17th. ​The date and location of the national exam is TBD. In order to participate in the National Exam, students must meet the eligibility requirements. Nominees will also be honored at our virtual awards ceremony on May 29th.


The 2021 ACS Joliet Local Section winners (L-R): Nikitha Sheth, Armando Jaquez, and Nitin Shivannagari