2023 Washington Code 18.280.170 – Exemption from licensing

2022 Washington Code 18.280.170 – Exemption from licensing

2020 Washington Code 18.280.170 – Exemption from licensing

2019 Washington Code 18.280.170 – Exemption from licensing

2018 Washington Code 18.280.170 – Exemption from licensing

2016 Washington Code 18.280.170 – Exemption from licensing

2015 Washington Code 18.280.170 – Exemption from licensing

2014 Washington Code 18.280.170 – Exemption from licensing

2013 Washington Code 18.280.170 – Exemption from licensing

2009 Washington Code 18.280.170 – Exemption from licensing