Chapter NR 274 - Nonferrous metals manufacturing
- Section NR 274.001 - Purpose
- Section NR 274.002 - Applicability
- Section NR 274.003 - General definitions
- Section NR 274.004 - Compliance dates
- Section NR 274.005 - Removal allowances for pretreatment standards
- Section NR 274.006 - General provisions
- Subchapter I - Bauxite Refining (§§ 274.01 — 274.016)
- Subchapter II - Primary Aluminum Smelting (§§ 274.02 — 274.026)
- Subchapter III - Secondary Aluminum Smelting (§§ 274.03 — 274.036)
- Subchapter IV - Primary Copper Smelting (§§ 274.04 — 274.046)
- Subchapter V - Primary Electrolytic Copper Refining (§§ 274.05 — 274.056)
- Subchapter VI - Secondary Copper (§§ 274.06 — 274.066)
- Subchapter VII - Primary Lead (§§ 274.07 — 274.076)
- Subchapter VIII - Primary Zinc (§§ 274.08 — 274.086)
- Subchapter IX - Metallurgical Acid Plants (§§ 274.09 — 274.096)
- Subchapter X - Primary Tungsten (§§ 274.10 — 274.106)
- Subchapter XI - Primary Columbium-Tantalum (§§ 274.11 — 274.116)
- Subchapter XII - Secondary Silver (§§ 274.12 — 274.126)
- Subchapter XIII - Secondary Lead (§§ 274.13 — 274.136)
- Subchapter XIV - Primary Antimony (§§ 274.14 — 274.146)
- Subchapter XV - Primary Beryllium (§§ 274.15 — 274.156)
- Subchapter XVIII - Primary and Secondary Germanium and Gallium (§§ 274.18 — 274.186)
- Subchapter XIX - Secondary Indium (§§ 274.19 — 274.196)
- Subchapter XX - Secondary Mercury (§§ 274.20 — 274.206)
- Subchapter XXI - Primary Molybdenum and Rhenium (§§ 274.21 — 274.216)
- Subchapter XXIII - Primary Nickel and Cobalt (§§ 274.23 — 274.236)
- Subchapter XXIV - Secondary Nickel (§§ 274.24 — 274.246)
- Subchapter XXV - Primary Precious Metals and Mercury (§§ 274.25 — 274.256)
- Subchapter XXVI - Secondary Precious Metals (§§ 274.26 — 274.266)
- Subchapter XXVII - Primary Rare Earth Metals (§§ 274.27 — 274.276)
- Subchapter XXVIII - Secondary Tantalum (§§ 274.28 — 274.286)
- Subchapter XXIX - Secondary Tin (§§ 274.29 — 274.296)
- Subchapter XXX - Primary and Secondary Titanium (§§ 274.30 — 274.306)
- Subchapter XXXI - Secondary Tungsten and Cobalt (§§ 274.31 — 274.316)
- Subchapter XXXII - Secondary Uranium (§§ 274.32 — 274.326)
- Subchapter XXXIII - Primary Zirconium and Hafnium (§§ 274.33 — 274.336)