Oregon Revised Statutes Education and Culture § 337.050

(1) The State Board of Education shall review and adopt, for periods established by the board, a list of textbooks and other instructional materials for use by school districts. The list shall contain, whenever possible:

(2) The State Board of Education shall consider the best educational interests of the students as well as the most economical method of purchasing textbooks and instructional materials in setting periods for textbook and instructional material review and adoption.

(3) The board shall refrain from adopting any textbook or instructional material in a subject field whenever it finds that no textbook or instructional material can be documented as meeting, to the degree determined by the board, the guidelines and criteria established by the board for textbooks and instructional materials.

(4) The board may approve the request of a publisher to substitute a more recent edition of any officially adopted textbook or item of instructional material in lieu of the edition or item adopted by the board.