Individual income tax: flow-through entities; sourcing and apportionment provisions; update. Amends secs. 102, 103, 105, 110, 112, 115, 122 & 123 of 1967 PA 281 (MCL 206.102 et seq.) & repeals secs. 111, 113, 114, 131, 132, 133 & 134 of 1967 PA 281 (MCL 206.111 et seq.).