40 CFR Part 63, Subpart NNNNNN, Table 1 to Subpart NNNNNN of Part 63 - HAP Emissions Sources

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There are 6 Updates appearing in the Federal Register for 40 CFR 63. View below or at eCFR (GPOAccess)
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View PDF at GPO Pt. 63, Subpt. NNNNNN, Table 1
Table 1 to Subpart NNNNNN of Part 63—HAP Emissions Sources
Process Emissions sources
1. Sodium chromate production a. Ball mill used to grind chromite ore.
b. Dryer used to dry chromite ore.
c. Rotary kiln used to roast chromite ore to produce sodium chromate.
d. Secondary rotary kiln used to recycle and refine residues containing chromium compounds.
e. Residue dryer system.
f. Quench tanks.
2. Sodium dichromate production a. Stack on the electrolytic cell system used to produce sodium dichromate.
b. Sodium dichromate crystallization unit.
c. Sodium dichromate drying unit.
3. Chromic acid production a. Electrolytic cell system used to produce chromic acid.
b. Melter used to produce chromic acid.
c. Chromic acid crystallization unit.
d. Chromic acid dryer.
4. Chromic oxide production a. Primary rotary roasting kiln used to produce chromic oxide.
b. Chromic oxide filter.
c. Chromic oxide dryer.
d. Chromic oxide grinding unit.
e. Chromic oxide storage vessel.
f. Secondary rotary roasting kiln.
g. Quench tanks.
5. Chromium hydrate production a. Furnace used to produce chromium hydrate.
b. Chromium hydrate grinding unit.
As required in § 63.11411(a), you must comply with the requirements of the General Provisions (40 CFR part 63, subpart A) as shown in the following table.

Title 40 published on 2013-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-03-27; vol. 79 # 59 - Thursday, March 27, 2014
    1. 79 FR 17340 - National Emission Standards for Hazardous Air Pollutant Emissions: Group IV Polymers and Resins; Pesticide Active Ingredient Production; and Polyether Polyols Production
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      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final action is effective on March 27, 2014. The incorporation by reference of certain publications listed in this final rule was approved by the Director of the Federal Register as of March 27, 2014.
      40 CFR Part 63

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United States Code

Title 40 published on 2013-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 63 after this date.

  • 2014-07-02; vol. 79 # 127 - Wednesday, July 2, 2014
    1. 79 FR 37850 - National Emission Standards for Hazardous Air Pollutants: Off-Site Waste and Recovery Operations
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      ENVIRONMENTAL PROTECTION AGENCY
      Proposed rule.
      Comments. Comments must be received on or before August 18, 2014. A copy of comments on the information collection provisions should be submitted to the Office of Management and Budget (OMB) on or before August 1, 2014. Public Hearing. We do not plan to conduct a public hearing unless requested. If requested, we will hold a public hearing on July 17, 2014. To request a hearing, please contact the person listed in the following FOR FURTHER INFORMATION CONTACT section by July 14, 2014.
      40 CFR Part 63