2023 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2022 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2020 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2019 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2017 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2016 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2015 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2014 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2013 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence

2009 Massachusetts General Laws ch. 40 sec. 21C – Union conventions; leave of absence