An Act amending the act of April 27, 1966 (1st Sp.Sess., P.L.31, No.1), known as The Bituminous Mine Subsidence and Land Conservation Act, further providing for the purpose of the act and for declaration of policy; describing underground mining operations; further providing for restoration or compensation for structures damaged by underground mining; providing for restoration or conversion of land affected by mine subsidence; and making an editorial change.