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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR Table 5 to Subpart KKKKK of Part 63: Table 5 to Subpart KKKKK of Part 63—Toxic Equivalency Factors

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER C—AIR PROGRAMS
  4. PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
  5. Subpart KKKKK—National Emission Standards for Hazardous Air Pollutants for Clay Ceramics Manufacturing

As stated in § 63.8595(f)(3), you must demonstrate initial compliance with each dioxin/furan emission limit that applies to you by calculating the sum of the 2,3,7,8-TCDD TEQs using the TEFs in the following table:

For each dioxin/furan congener . . . You must calculate its 2,3,7,8-TCDD TEQ using the following TEF . . .

2,3,7,8-tetrachlorodibenzo-p-dioxin 1

1,2,3,7,8-pentachlorodibenzo-p-dioxin 1

1,2,3,4,7,8-hexachlorodibenzo-p-dioxin 0.1

1,2,3,7,8,9-hexachlorodibenzo-p-dioxin 0.1

1,2,3,6,7,8-hexachlorodibenzo-p-dioxin 0.1

1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin 0.01

Octachlorodibenzo-p-dioxin 0.0003

2,3,7,8-tetrachlorodibenzofuran 0.1

1,2,3,7,8-pentachlorodibenzofuran 0.03

2,3,4,7,8-pentachlorodibenzofuran 0.3

1,2,3,4,7,8-hexachlorodibenzofuran 0.1

1,2,3,6,7,8-hexachlorodibenzofuran 0.1

1,2,3,7,8,9-hexachlorodibenzofuran 0.1

2,3,4,6,7,8-hexachlorodibenzofuran 0.1

1,2,3,4,6,7,8-heptachlorodibenzofuran 0.01

1,2,3,4,7,8,9-heptachlorodibenzofuran 0.01

Octachlorodibenzofuran 0.0003

Collected 2026-08-27T02:26:04Z. Source file · JSON

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