2024 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer.

2023 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2022 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2021 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2020 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2019 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2019 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2017 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2016 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2015 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2014 Virginia Code 15.2-1231: Centralized competitive purchasing by chief administrative officer

2011 Virginia Code 15.2-1231 – Centralized competitive purchasing by chief administrative officer

2008 Virginia Code 15.2-1231 – Centralized competitive purchasing by chief administrative officer