Students must live in Oregon and be enrolled in a public, private, or charter school.
The fall contest is for students who live in the following counties: Clackamas, Hood River, Multnomah, Washington, Clatsop, Columbia, Tillamook, Yamhill, Polk, Marion, Lincoln, Linn, Benton, and Lane.
The spring contest is for students who live in the following counties: Douglas, Curry, Coos, Josephine, Jackson, Wasco, Sherman, Gilliam, Jefferson, Wheeler, Crook, Deschutes, Lake, Klamath, Morrow, Umatilla, Union, Wallowa, Baker, Grant, Harney, and Malheur.
Students may work independently or as part of a team.