HB 4455 of 2021 Posted on December 12, 2022 by mick.mcdonald Environmental protection: solid waste; definitions H to Z; revise and set forth general provisions. Amends secs. 11504, 11505, 11506, 11507, 11507a & 11508 of 1994 PA 451 (MCL 324.11504 et seq.). Last Action: 12/8/2022 – bill ordered enrolled