The provisions of this chapter do not apply with respect to the use of wax and ceramic materials used to create molds consumed during the process of creating ferrous and nonferrous investment castings used in industrial applications.
RCW 82.12.983
Exemptions—Wax and ceramic materials.
2010 c 225 s 2.
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.