Versions of Washington Code 23.100.1317 - Nonexclusivity on LawServer 2023 Washington Code 23.100.1317 – Nonexclusivity 2022 Washington Code 23.100.1317 – Nonexclusivity 2020 Washington Code 23.100.1317 – Nonexclusivity 2019 Washington Code 23.100.1317 – Nonexclusivity