Versions of Michigan Laws 28.673 - Public threat alert system plan; establishment; maintenance; design; activation on LawServer 2023 Michigan Laws 28.673 – Public threat alert system plan; establishment; maintenance; design; activation 2022 Michigan Laws 28.673 – Public threat alert system plan; establishment; maintenance; design; activation 2020 Michigan Laws 28.673 – Public threat alert system plan; establishment; maintenance; design; activation 2019 Michigan Laws 28.673 – Public threat alert system plan; establishment; maintenance; design; activation 2017 Michigan Laws 28.673 – Public threat alert system plan; establishment; maintenance; design; activation 2016 Michigan Laws 28.673 – Public threat alert system plan; establishment; maintenance; design; activation
