Regulations last checked for updates: May 15, 2024

Title 40 - Protection of Environment last revised: May 13, 2024
Appendix - Table 1 to Subpart CCCC of Part 63—Emission Limitations
For each fed-batch fermenter producing yeast in the following fermentation stage . . . 98-percent option: You must not exceed the following VOC emission limitation a according to the timeline in Table 7 to this subpart . . . Average option: You must not exceed the following VOC emission limitation a according to the timeline in Table 7 to this subpart . . . Batch option: You must not exceed the following VOC emission limitation a according to the timeline in Table 7 to this subpart . . .
Last stage100 ppmv (measured as propane) for BAVOC for at least 98 percent of all batches in each 12-month calculation period described in § 63.2171(b) and (e)95 ppmv (measured as propane) for the average BAVOC of all batches in this stage in each 12-month calculation period described in § 63.2171(c) and (e)100 ppmv (measured as propane) for BAVOC for each batch.
Second-to-last stage200 ppmv (measured as propane) for BAVOC for at least 98 percent of all batches in each 12-month calculation period described in § 63.2171(b) and (e)190 ppmv (measured as propane) for the average BAVOC of all batches in this stage in each 12-month calculation period described in § 63.2171(c) and (e)200 ppmv (measured as propane) for BAVOC for each batch.
Third-to-last stage300 ppmv (measured as propane) for BAVOC for at least 98 percent of all batches in each 12-month calculation period described in § 63.2171(b) and (e)285 ppmv (measured as propane) for the average BAVOC of all batches in this stage in each 12-month calculation period described in § 63.2171(c) and (e)300 ppmv (measured as propane) for BAVOC for each batch.

a The emission limitation does not apply during the production of specialty yeast.

authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.