Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 264 - Electrical and electronic components
Subchapter IV - Luminescent Materials Subcategory
Section NR 264.40 - Applicability; description of the luminescent materials subcategory

This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs resulting from the manufacture of materials, such as calcium halophosphate, yttrium oxide, zinc sulfide, and zinc-cadmium sulfide, which emit light upon excitation by energy sources such as photons, electrons, applied voltage, chemical reactions, or mechanical energy, and which are specifically used as coatings in fluorescent lamps and cathode ray tubes.