2023 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2022 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2021 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2020 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2019 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2019 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2017 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2016 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2015 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2014 Virginia Code 18.2-251.4: Defeating drug and alcohol screening tests; penalty

2011 Virginia Code 18.2-251.4 – Defeating drug and alcohol screening tests; penalty

2008 Virginia Code 18.2-251.4 – Defeating drug and alcohol screening tests; penalty