Main Content Act 497 of 1980 friendly link printer friendly bills affecting mcl index link Search within this Statute for CONSTRUCTION LIEN ACTAct 497 of 1980AN ACT to establish, protect, and enforce by lien the rights of persons performing labor or providing material or equipment for the improvement of real property; to provide for defenses to construction liens; to provide remedies and prescribe penalties; and to repeal acts and parts of acts. History: 1980, Act 497, Eff. Jan. 1, 1982 ;-- Am. 2006, Act 497, Eff. Jan. 3, 2007 ;-- Am. 2010, Act 147, Imd. Eff. Aug. 23, 2010 The People of the State of Michigan enact: DocumentTypeDescription 497-1980-1DivisionPART 1 (570.1101...570.1128) 497-1980-2DivisionPART 2 (570.1201...570.1207) 497-1980-3DivisionPART 3 (570.1301...570.1305)