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Table 2 to Subpart QQQQ of Part 63—Emission Limits for Existing Affected Sources

Emission Limits for Existing Affected Sources

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  3. Title 40
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  5. Chapter I
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  7. Part 63
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  9. Subpart QQQQ
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  11. Subject Group Other Requirements and Information
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  13. Appendix Table 2 to Subpart QQQQ of Part 63
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Table 2 to Subpart QQQQ of Part 63—Emission Limits for Existing Affected Sources

You must comply with the emission limits that apply to your affected source in the following table as required by § 63.4690.

If the affected source applies coating to products in the following subcategory. . .Then, the organic HAP emission limit for the affected source, in grams HAP/liter solids (lb HAP/gal solids) 1 2 is:
1. Exterior siding and primed doorskins7 (0.06)
2. Flooring93 (0.78)
3. Interior wall paneling or tileboard183 (1.53)
4. Other interior panels20 (0.17)
5. Doors, windows, and miscellaneous231 (1.93)
1 Determined as a rolling 12-month emission rate according to the requirements in § 63.4741, § 63.4751, or § 63.4761, as applicable.
2 If the affected source applies coatings to products in more than one of the subcategories listed in the table, then you must determine the applicable emission limit according to § 63.4690(c).