Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 463 - National Emission Standards For Hazardous Air Pollutants For Metals Treating And Processing
Subchapter I - Chromium Emissions from Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks
Section NR 463.01 - Applicability and designation of sources; purpose

(a) The affected source to which this subchapter applies is each chromium electroplating or chromium anodizing tank at facilities performing hard chromium electroplating, decorative chromium electroplating or chromium anodizing.

(b) Owners or operators of affected sources subject to this subchapter are also subject to the requirements of ch. NR 460, according to the applicability of ch. NR 460 to these sources as identified in ch. NR 460 Appendix N.

(c) Process tanks associated with a chromium electroplating or chromium anodizing process, but in which neither chromium electroplating nor chromium anodizing takes place, are not subject to this subchapter. Examples of these tanks include, but are not limited to, rinse tanks, etching tanks and cleaning tanks. Likewise, tanks that contain a chromium solution, but in which no electrolytic process occurs, are not subject to this subchapter. An example of such a tank is a chrome conversion coating tank where no electrical current is applied.

(d) Affected sources in which research and laboratory operations are performed are exempt from this subchapter when these operations are taking place.

(e) An owner or operator of any affected source subject to this subchapter which is not exempt under s. NR 407.03(1) (km) is subject to part 70 permit requirements under ch. NR 407.