U.S. National Chemistry Olympiad Local Competition

The U.S. National Chemistry Olympiad Local Competition is the first stage of the American Chemical Society's four-tier high-school chemistry program. The 2026 local exam was offered February 27–March 16 and consisted of 60 multiple-choice questions in 110 minutes across stoichiometry, laboratory chemistry, states of matter, thermodynamics, kinetics, equilibrium, redox, atomic structure, bonding, and organic or biochemistry. Local sections select their strongest students for the April National Exam; registration is coordinated by a parent or guardian and the local ACS coordinator.