2023 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2022 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2020 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2019 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2017 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2016 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2015 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2014 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2013 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
2009 Massachusetts General Laws ch. 149 sec. 129 – Safeguards for hoistways, hatchways and well holes; closing trapdoors
