Chemistry · Direct entry
U.S. National Chemistry Olympiad
Begin with your local ACS exam and pursue national, camp, and international team selection.
Who it’s for: Eligible high-school students
Your first step
Find the ACS Local Section serving your school and review its participation process.
Open official guideThe route
Local exam
Enter through the appropriate ACS Local Section.
National exam
Local sections nominate eligible students under the national rules.
Study Camp
Top National Exam performers are selected for advanced training and assessment.
International team
Camp performance determines selection for the U.S. IChO team.
Before you commit: National advancement requires U.S. citizenship or permanent residency, and local sections face school nomination limits.
Sources and review · 2026-10-20
Organizer: American Chemical Society. Causey’s summary is a starting point; the organizer decides eligibility, selection and current availability.