Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart LLLLL > Appendix - Table 2 to Subpart LLLLL of Part 63

Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024

Appendix - Table 2 to Subpart LLLLL of Part 63—Operating Limits

For—	You must ^a
1. Non-flare combustion devices with a design heat input capacity less than 44 MW or where the emissions are not introduced into the flame zone	Maintain the 3-hour average ^b combustion zone temperature at or above the operating limit established during the performance test.
2. Flares	Meet the operating requirements specified in § 63.11(b).
3. Control devices used to comply with the particulate matter standards.	a. Maintain the 3-hour average b inlet gas temperature at or below the operating limit established during the performance test; and
	b. Maintain the 3-hour average b pressure drop across the device c within the operating range limits (i.e., at or above a minimum pressure drop and at or below a maximum pressure drop) established during the performance test, or as an alternative, established according to the manufacturer's specifications as specified in § 63.8689(d).
4. Other control devices that are neither a combustion device nor a control device used to comply with the particulate matter emission standards	Maintain the approved monitoring parameters within the operating limits established during the performance test.

^a The operating limits specified in Table 2 to this subpart are applicable if you are monitoring control device operating parameters to demonstrate continuous compliance. If you are using a CEMS or COMS, you must maintain emissions below the value established during the initial performance test.

^b A 15-minute averaging period can be used as an alternative to the 3-hour averaging period for this parameter.

^c As an alternative to monitoring the pressure drop across the control device, owners or operators using an ESP to achieve compliance with the emission limits specified in Table 1 to this subpart can monitor the voltage to the ESP. If this option is selected, the ESP voltage must be maintained at or above the operating limit established during the performance test.

[68 FR 24577, May 7, 2003, as amended at 85 FR 14553, Mar. 12, 2020]

authority: 42 U.S.C. 7401

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