Versions of See prior versions of a law on LawServer 2024 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2023 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2022 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2020 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2019 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2017 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2016 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2015 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2014 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2013 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate; restrictions regarding persons subject to restraining order issued p 2009 Massachusetts General Laws ch. 148 sec. 20B – Certificate of competency to conduct blasting operations; application; fee; examination; issuance; duration; expiration; renewal; duplicate
