Regulations last checked for updates: Feb 08, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 414Appendix Appendix B - Appendix B to Part 414—Complexed Metal-Bearing Waste Streams
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Appendix Appendix B - Appendix B to Part 414—Complexed Metal-Bearing Waste Streams
Chromium Azo dye intermediates/Substituted diazonium salts + coupling compounds Vat dyes Acid dyes Azo dyes, metallized/Azo dye + metal acetate Acid dyes, Azo (including metallized) Organic pigments, miscellaneous lakes and toners Copper Disperse dyes Acid dyes Direct dyes Vat dyes Sulfur dyes Disperse dye coupler/N-substitution of 2-Amino-4-acetamidoanisole Azo dyes, metallized/Azo dye + metal acetate Direct dyes, Azo Disperse dyes, Azo and Vat Organic pigment Green 7/Copper phthalocyanine Organic pigments Organic pigments/Phthalocyanine pigments Organic pigments/Copper phthalocyanine (Blue Crude) Organic pigments, miscellaneous lakes and toners Lead Organic pigments, Quinacridines Organic pigments, Thioindigoids Tetraethyl lead/Alkyl halide + sodium-lead alloy Tetramethyl lead/Alkyl halide + sodium-lead alloy Nickel Azo dyes, metallized/Azo dye + metal acetate Zinc Organic pigments/Azo pigments by diazotization and coupling [52 FR 42568, Nov. 5, 1987, as amended at 54 FR 27352, June 29, 1989; 57 FR 41844, Sept. 11, 1992]
source: 52 FR 42568, Nov. 5, 1987, unless otherwise noted.
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