Oregon Revised Statutes Occupations and Professions § 700.030

(a) Has a bachelor's degree from an accredited college or university with at least 45 quarter hours, or the equivalent semester hours, in science courses relating to environmental sanitation and two years of experience in environmental sanitation under the supervision of a registered environmental health specialist or a person possessing equal qualifications, as determined by the board. Accumulated schooling relevant to environmental sanitation gained while serving in the United States Public Health Service or a branch of the Armed Forces of the United States may be credited toward the educational requirement as evaluated by the current edition of the “Guide to Evaluation of Educational Experience in the Armed Services,” by the American Council on Education; or

(b) Has a graduate degree in public or community health from an accredited college or university and one year of experience in environmental sanitation under the supervision of a registered environmental health specialist or a person possessing equal qualifications, as determined by the board.