Worker's compensation: benefits; worker's disability compensation benefits; modify various provisions. Amends secs. 301, 313, 354, 355, 361, 371, 401 & 891 of 1969 PA 317 (MCL 418.301 et seq.) & repeals secs. 302 & 431 of 1969 PA 317 (MCL 418.302 & 418.431).