2023 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2022 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2020 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2019 Washington Code 70.42.060

2018 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2016 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2015 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2014 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2013 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards

2009 Washington Code 70.42.060 – Quality control, quality assurance, recordkeeping, and personnel standards