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