Versions of See prior versions of a law on LawServer 2024 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2023 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2022 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2020 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2019 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2017 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2016 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2015 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2014 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2013 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration 2009 Massachusetts General Laws ch. 21A sec. 20 – Joint powers agreements; definitions; approval; administration.