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Table 2 to Subpart NNNNN of Part 63—Operating Limits

Operating Limits

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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 NNNNN
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  11. Subject Group Other Requirements and Information
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  13. Appendix Table 2 to Subpart NNNNN of Part 63
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Table 2 to Subpart NNNNN of Part 63—Operating Limits

As stated in § 63.9000(b), you must comply with the following operating limits for each emission stream that is part of an affected source that is vented to a control device.

For each . . .You must . . .
1. Caustic scrubber or water scrubber/absorbera. Maintain the daily average scrubber inlet liquid or recirculating liquid flow rate, as appropriate, above the operating limit; and

b. Maintain the daily average scrubber effluent pH within the operating limits; or

c. Instead of a. and b., maintain your operating parameter(s) within the operating limits established according to your monitoring plan established under § 63.8(f).
2. Other type of control device to which HCl emissions are ductedMaintain your operating parameter(s) within the limits established during the performance test and according to your monitoring plan.