eCFR.io
Daily eCFR

Table 4 to Subpart CCCC of Part 63—Continuous Compliance With Emission Limitations

Continuous Compliance With Emission Limitations

CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

Table 4 to Subpart CCCC of Part 63—Continuous Compliance With Emission Limitations

For . . .98-percent option: You must demonstrate continuous compliance by . . .Average option: You must demonstrate continuous compliance by . . .Batch option: You must demonstrate continuous compliance by . . .
1. Each fed-batch fermenter producing yeast in a fermentation stage (last, second-to-last, or third-to-last) for which compliance is determined by monitoring VOC concentration in the fermenter exhaust

2. Each fed-batch fermenter producing yeast in a fermentation stage (last, second-to-last, or third-to-last) for which compliance is determined by monitoring brew ethanol concentration and calculating VOC concentration in the fermenter exhaust according to the procedures in § 63.2161 a
Showing that BAVOC for at least 98 percent of the batches for each 12-month calculation period ending within a semiannual reporting period described in § 63.2181(b)(3) does not exceed the applicable maximum concentration in Table 1 to this subpartShowing that the average BAVOC of all batches in each fermentation stage during each 12-month calculation period ending within a semiannual reporting period described in § 63.2181(b)(3) does not exceed the applicable concentration in Table 1 to this subpartShowing that BAVOC for each batch within a semiannual reporting period described in § 63.2181(b)(3) does not exceed the applicable concentration in Table 1 to this subpart.
a Monitoring brew ethanol concentration to demonstrate compliance is not allowed on and after October 16, 2020, as specified in Table 8 to this subpart.