Versions of Oregon Statutes 743B.602 - Step therapy on LawServer 2023 Oregon Statutes 743B.602 – Step therapy 2021 Oregon Statutes 743B.602 – Step therapy 2019 Oregon Statutes 743B.602 – Step therapy 2017 Oregon Statutes 743B.602 – Step therapy 2015 Oregon Statutes 743B.602 – Step therapy