Versions of Arizona Laws > Title 20 > Chapter 31 - Step Therapy on LawServer 2024 Arizona Laws > Title 20 > Chapter 31 – Step Therapy 2023 Arizona Laws > Title 20 > Chapter 31 – Step Therapy 2022 Arizona Laws > Title 20 > Chapter 31 – Step Therapy 2021 Arizona Laws > Title 20 > Chapter 31 – Step Therapy