Michigan Laws > Chapter 339 Michigan Laws > Chapter 339 – Occupational Code Current as of: 2023 | Check for updates | Other versions Act 299 of 1980 Occupational Code E.R.O. No. 2009-23 Executive Reorganization Order E.R.O. No. 2017-1 Executive Reorganization Order Act 407 of 2016 Skilled Trades Regulation Act