2024 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2023 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2022 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2020 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2019 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2017 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2016 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2015 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2014 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2013 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions

2009 Massachusetts General Laws ch. 7 sec. 22A – Collective purchasing by commonwealth and political subdivisions