Section NR 257.51 - Specialized definitionsIn addition to the definitions set forth in s. NR 257.03, the following definitions apply to the terms used in this subchapter:
(1) "Ancillary operation" means any operation which is not a core operation but which is performed on-site following or preceding the drawing operation, such as continuous rod casting, solution heat treatment, and cleaning or etching.(2) "Core operation" means drawing with neat oils, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging.Wis. Admin. Code Department of Natural Resources NR 257.51
Cr. Register, November, 1989, No. 407, eff. 12-1-89.