2023 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2022 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2021 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2020 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2019 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2019 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2017 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2016 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2015 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2014 Virginia Code 18.2-268.9: Assurance of breath-test validity; use of breath-test results as evidence

2011 Virginia Code 18.2-268.9 – Assurance of breath-test validity; use of breath-test results as evidence

2008 Virginia Code 18.2-268.9 – Assurance of breath-test validity; use of test results as evidence