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

40 CFR Table 1 to Subpart JJJJJ of Part 63: Table 1 to Subpart JJJJJ of Part 63—Emission Limits

As stated in § 63.8405, you must meet each emission limit in the following table that applies to you:
For each . . . You must meet the following emission limits . . . Or you must comply with the following . . .
1. Collection of all tunnel kilns at facility, including all process streams HF, HCl, and Cl2 emissions must not exceed 26 kg/hr (57 lb/hr) HCl equivalent, under the health-based standard, as determined using Equations 2 and 3 Not applicable.
2. Existing large tunnel kiln (design capacity ≥10 tons per hour (tph) of fired product), including all process streams a. PM emissions must not exceed 0.018 kg/Mg (0.036 lb/ton) of fired product i. PM emissions must not exceed 6.6 mg/dscm (0.0029 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.0026 kg/hr (0.0057 lb/hr).
b. Hg emissions must not exceed 2.1 E-05 kilogram per megagram (kg/Mg) (4.1 E-05 pound per ton (lb/ton)) of fired product i. Hg emissions must not exceed 7.7 micrograms per dry standard cubic meter (µg/dscm) at 17% O2; or
ii. Hg emissions must not exceed 2.5 E-04 kg/hr (5.5 E-04 lb/hr).
3. Existing small tunnel kiln (design capacity <10 tph of fired product), including all process streams a. PM emissions must not exceed 0.19 kg/Mg (0.37 lb/ton) of fired product i. PM emissions must not exceed 4.8 mg/dscm (0.0021 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.047 kg/hr (0.11 lb/hr).
b. Hg emissions must not exceed 1.7 E-04 kg/Mg (3.3 E-04 lb/ton) of fired product i. Hg emissions must not exceed 91 µg/dscm at 17% O2; or
ii. Hg emissions must not exceed 8.5 E-04 kg/hr (0.0019 lb/hr).
4. New or reconstructed large tunnel kiln (design capacity ≥10 tph of fired product), including all process streams a. PM emissions must not exceed 0.0089 kg/Mg (0.018 lb/ton) of fired product. i. PM emissions must not exceed 3.2 mg/dscm (0.0014 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.0026 kg/hr (0.0057 lb/hr) of fired product.
b. Hg emissions must not exceed 1.4 E-05 kg/Mg (2.8 E-05 lb/ton) of fired product i. Hg emissions must not exceed 6.2 µg/dscm at 17% O2.
ii. Hg emissions must not exceed 1.6 E-04 kg/hr (3.4 E-04 lb/hr).
5. New or reconstructed small tunnel kiln (design capacity <10 tph of fired product), including all process streams a. PM emissions must not exceed 0.015 kg/Mg (0.030 lb/ton) of fired product i. PM emissions must not exceed 4.7 mg/dscm (0.0021 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.047 kg/hr (0.11 lb/hr) of fired product.
b. Hg emissions must not exceed 1.7 E-04 kg/Mg (3.3 E-04 lb/ton) of fired product i. Hg emissions must not exceed 91 µg/dscm at 17% O2.
ii. Hg emissions must not exceed 8.5 E-04 kg/hr (0.0019 lb/hr).

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
Subpart JJJJJ—National Emission Standards for Hazardous Air Pollutants for Brick and Structural Clay Products Manufacturing

As stated in § 63.8405, you must meet each emission limit in the following table that applies to you:

For each . . . You must meet the following emission limits . . . Or you must comply with the following . . .

1. Collection of all tunnel kilns at facility, including all process streams HF, HCl, and Cl2 emissions must not exceed 26 kg/hr (57 lb/hr) HCl equivalent, under the health-based standard, as determined using Equations 2 and 3 Not applicable.

2. Existing large tunnel kiln (design capacity ≥10 tons per hour (tph) of fired product), including all process streams a. PM emissions must not exceed 0.018 kg/Mg (0.036 lb/ton) of fired product i. PM emissions must not exceed 6.6 mg/dscm (0.0029 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.0026 kg/hr (0.0057 lb/hr).

b. Hg emissions must not exceed 2.1 E-05 kilogram per megagram (kg/Mg) (4.1 E-05 pound per ton (lb/ton)) of fired product i. Hg emissions must not exceed 7.7 micrograms per dry standard cubic meter (µg/dscm) at 17% O2; or

ii. Hg emissions must not exceed 2.5 E-04 kg/hr (5.5 E-04 lb/hr).

3. Existing small tunnel kiln (design capacity <10 tph of fired product), including all process streams a. PM emissions must not exceed 0.19 kg/Mg (0.37 lb/ton) of fired product i. PM emissions must not exceed 4.8 mg/dscm (0.0021 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.047 kg/hr (0.11 lb/hr).

b. Hg emissions must not exceed 1.7 E-04 kg/Mg (3.3 E-04 lb/ton) of fired product i. Hg emissions must not exceed 91 µg/dscm at 17% O2; or

ii. Hg emissions must not exceed 8.5 E-04 kg/hr (0.0019 lb/hr).

4. New or reconstructed large tunnel kiln (design capacity ≥10 tph of fired product), including all process streams a. PM emissions must not exceed 0.0089 kg/Mg (0.018 lb/ton) of fired product. i. PM emissions must not exceed 3.2 mg/dscm (0.0014 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.0026 kg/hr (0.0057 lb/hr) of fired product.

b. Hg emissions must not exceed 1.4 E-05 kg/Mg (2.8 E-05 lb/ton) of fired product i. Hg emissions must not exceed 6.2 µg/dscm at 17% O2.

ii. Hg emissions must not exceed 1.6 E-04 kg/hr (3.4 E-04 lb/hr).

5. New or reconstructed small tunnel kiln (design capacity <10 tph of fired product), including all process streams a. PM emissions must not exceed 0.015 kg/Mg (0.030 lb/ton) of fired product i. PM emissions must not exceed 4.7 mg/dscm (0.0021 gr/dscf) at 17% O2; or ii. Non-Hg HAP metals emissions must not exceed 0.047 kg/hr (0.11 lb/hr) of fired product.

b. Hg emissions must not exceed 1.7 E-04 kg/Mg (3.3 E-04 lb/ton) of fired product i. Hg emissions must not exceed 91 µg/dscm at 17% O2.

ii. Hg emissions must not exceed 8.5 E-04 kg/hr (0.0019 lb/hr).

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

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