• Subpart A [§ 415.01 - § 415.15] - Subpart A—Aluminum Chloride Production Subcategory

• Subpart B [§ 415.20 - § 415.26] - Subpart B—Aluminum Sulfate Production Subcategory

• Subpart C [§ 415.30 - § 415.36] - Subpart C—Calcium Carbide Production Subcategory

• Subpart D [§ 415.40 - § 415.46] - Subpart D—Calcium Chloride Production Subcategory

• Subpart E [§ 415.50 - § 415.56] - Subpart E—Calcium Oxide Production Subcategory

• Subpart F [§ 415.60 - § 415.67] - Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)

• Subpart G - Subpart G—Hydrochloric Acid Production Subcategory [Reserved]

• Subpart H [§ 415.80 - § 415.87] - Subpart H—Hydrofluoric Acid Production Subcategory

• Subpart I [§ 415.90 - § 415.92] - Subpart I—Hydrogen Peroxide Production Subcategory

• Subpart J - Subpart J—Nitric Acid Production Subcategory [Reserved]

• Subpart K [§ 415.110 - § 415.116] - Subpart K—Potassium Metal Production Subcategory

• Subpart L [§ 415.120 - § 415.126] - Subpart L—Potassium Dichromate Production Subcategory

• Subpart M [§ 415.130 - § 415.136] - Subpart M—Potassium Sulfate Production Subcategory

• Subpart N [§ 415.140 - § 415.146] - Subpart N—Sodium Bicarbonate Production Subcategory

• Subpart O - Subpart O—Sodium Carbonate Production Subcategory [Reserved]

• Subpart P [§ 415.160 - § 415.166] - Subpart P—Sodium Chloride Production Subcategory

• Subpart Q [§ 415.170 - § 415.177] - Subpart Q—Sodium Dichromate and Sodium Sulfate Production Subcategory

• Subpart R - Subpart R—Sodium Metal Production Subcategory [Reserved]

• Subpart S - Subpart S—Sodium Silicate Production Subcategory [Reserved]

• Subpart T [§ 415.200 - § 415.207] - Subpart T—Sodium Sulfite Production Subcategory

• Subpart U - Subpart U—Sulfuric Acid Production Subcategory [Reserved]

• Subpart V [§ 415.220 - § 415.227] - Subpart V—Titanium Dioxide Production Subcategory

• Subpart W [§ 415.230 - § 415.237] - Subpart W—Aluminum Fluoride Production Subcategory

• Subpart X [§ 415.240 - § 415.242] - Subpart X—Ammonium Chloride Production Subcategory

• Subpart Y - Subpart Y—Ammonium Hydroxide Production Subcategory [Reserved]

• Subpart Z - Subpart Z—Barium Carbonate Production Subcategory [Reserved]

• Subpart AA [§ 415.270 - § 415.276] - Subpart AA—Borax Production Subcategory

• Subpart AB [§ 415.280 - § 415.282] - Subpart AB—Boric Acid Production Subcategory

• Subpart AC [§ 415.290 - § 415.296] - Subpart AC—Bromine Production Subcategory

• Subpart AD [§ 415.300 - § 415.302] - Subpart AD—Calcium Carbonate Production Subcategory

• Subpart AE [§ 415.310 - § 415.316] - Subpart AE—Calcium Hydroxide Production Subcategory

• Subpart AF - Subpart AF—Carbon Dioxide Production Subcategory [Reserved]

• Subpart AG [§ 415.330 - § 415.332] - Subpart AG—Carbon Monoxide and By-Product Hydrogen Production Subcategory

• Subpart AH [§ 415.340 - § 415.347] - Subpart AH—Chrome Pigments Production Subcategory

• Subpart AI [§ 415.350 - § 415.356] - Subpart AI—Chromic Acid Production Subcategory

• Subpart AJ [§ 415.360 - § 415.367] - Subpart AJ—Copper Salts Production Subcategory

• Subpart AK - Subpart AK—Cuprous Oxide Production Subcategory [Reserved]

• Subpart AL [§ 415.380 - § 415.386] - Subpart AL—Ferric Chloride Production Subcategory

• Subpart AM - Subpart AM—Ferrous Sulfate Production Subcategory [Reserved]

• Subpart AN [§ 415.400 - § 415.406] - Subpart AN—Fluorine Production Subcategory

• Subpart AO [§ 415.410 - § 415.412] - Subpart AO—Hydrogen Production Subcategory

• Subpart AP [§ 415.420 - § 415.427] - Subpart AP—Hydrogen Cyanide Production Subcategory

• Subpart AQ [§ 415.430 - § 415.436] - Subpart AQ—Iodine Production Subcategory

• Subpart AR [§ 415.440 - § 415.446] - Subpart AR—Lead Monoxide Production Subcategory

• Subpart AS [§ 415.450 - § 415.452] - Subpart AS—Lithium Carbonate Production Subcategory

• Subpart AT - Subpart AT—Manganese Sulfate Production Subcategory [Reserved]

• Subpart AU [§ 415.470 - § 415.477] - Subpart AU—Nickel Salts Production Subcategory

• Subpart AV - Subpart AV—Strong Nitric Acid Production Subcategory [Reserved]

• Subpart AW [§ 415.490 - § 415.492] - Subpart AW—Oxygen and Nitrogen Production Subcategory

• Subpart AX [§ 415.500 - § 415.506] - Subpart AX—Potassium Chloride Production Subcategory

• Subpart AY [§ 415.510 - § 415.512] - Subpart AY—Potassium Iodide Production Subcategory

• Subpart AZ - Subpart AZ—Potassium Permanganate Production Subcategory [Reserved]

• Subpart BA [§ 415.530 - § 415.534] - Subpart BA—Silver Nitrate Production Subcategory

• Subpart BB [§ 415.540 - § 415.547] - Subpart BB—Sodium Bisulfite Production Subcategory

• Subpart BC [§ 415.550 - § 415.556] - Subpart BC—Sodium Fluoride Production Subcategory

• Subpart BD - Subpart BD—Sodium Hydrosulfide Production Subcategory [Reserved]

• Subpart BE - Subpart BE—Sodium Hydrosulfite Production Subcategory [Reserved]

• Subpart BF - Subpart BF—Sodium Silicofluoride Production Subcategory [Reserved]

• Subpart BG - Subpart BG—Sodium Thiosulfate Production Subcategory [Reserved]

• Subpart BH [§ 415.600 - § 415.606] - Subpart BH—Stannic Oxide Production Subcategory

• Subpart BI - Subpart BI—Sulfur Dioxide Production Subcategory [Reserved]

• Subpart BJ - Subpart BJ—Zinc Oxide Production Subcategory [Reserved]

• Subpart BK [§ 415.630 - § 415.636] - Subpart BK—Zinc Sulfate Production Subcategory

• Subpart BL [§ 415.640 - § 415.647] - Subpart BL—Cadmium Pigments and Salts Production Subcategory

• Subpart BM [§ 415.650 - § 415.657] - Subpart BM—Cobalt Salts Production Subcategory

• Subpart BN [§ 415.660 - § 415.667] - Subpart BN—Sodium Chlorate Production Subcategory

• Subpart BO [§ 415.670 - § 415.677] - Subpart BO—Zinc Chloride Production Subcategory