Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart CCCC > Appendix - Table 8 to Subpart CCCC of Part 63

Regulations last checked for updates: May 16, 2024

Title 40 - Protection of Environment last revised: May 14, 2024

Appendix - Table 8 to Subpart CCCC of Part 63—Monitoring System Requirements Timeline

For each . . .	During this time frame . . .	You must monitor VOC concentration by . . .
Existing affected source	Before 10/16/2017	Monitoring fermenter exhaust using a CEMS or by monitoring brew ethanol concentration using a brew ethanol monitor.
	Between 10/16/2017 and October 16, 2020	Monitoring fermenter exhaust using a VOC CEMS or by monitoring brew ethanol concentration using a brew ethanol monitor.
	On and after October 16, 2020	Monitoring fermenter exhaust using a VOC CEMS.
New or reconstructed affected source that you start up prior to 10/16/2017	Before 10/16/2017	Monitoring fermenter exhaust using a CEMS or by monitoring brew ethanol concentration using a brew ethanol monitor.
	Between 10/16/2017 and October 16, 2020	Monitoring fermenter exhaust using a VOC CEMS or by monitoring brew ethanol concentration using a brew ethanol monitor.
	On and after October 16, 2020	Monitoring fermenter exhaust using a VOC CEMS.
New or reconstructed affected source that you start up after 10/16/2017	After 10/16/2017	Monitoring fermenter exhaust using a VOC CEMS.

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.