Versions of Michigan Laws 333.16641 - Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies on LawServer 2024 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2023 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2022 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2020 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2019 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2017 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2016 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2015 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2014 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2013 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies 2009 Michigan Laws 333.16641 – Work authorization for dental laboratory services required; retention and inspection of work authorizations and copies