2023 Washington Code 68.50.107 – State toxicological laboratory established — State toxicologist

2022 Washington Code 68.50.107 – State toxicological laboratory established–State toxicologist

2020 Washington Code 68.50.107 – State toxicological laboratory established — State toxicologist

2019 Washington Code 68.50.107

2018 Washington Code 68.50.107 – State toxicological laboratory established — State toxicologist

2016 Washington Code 68.50.107 – State toxicological laboratory established–State toxicologist

2015 Washington Code 68.50.107 – State toxicological laboratory established–State toxicologist

2014 Washington Code 68.50.107 – State toxicological laboratory established — State toxicologist

2013 Washington Code 68.50.107 – State toxicological laboratory established — State toxicologist

2009 Washington Code 68.50.107 – State toxicological laboratory established — State toxicologist