مستندات
Public Act 54151 of 19862018 (Amendment to Public Act 407 0f 2016 - The Skilled Trades Regulation Act)
Public Act 230 Stille-Derossett Construction Act
2011 Michigan Part 8 Rules
Public Act 407 of 2016 The Skilled Trades Regulation Act
City of Detroit Ordinance 604-H
Public Act 267 Open Meeting Act