40 CFR Table 2
Emission Limits for Storage Tanks
June 9, 2020
As required in §63.8010, you must meet each emission limit in the following table that applies to your storage tanks.
Open Table
| For each . . . | Then you must . . . |
|---|---|
| 1. Group 1a storage tank | a. Comply with the requirements of subpart WW of this part, except as specified in §63.8010(b); or |
| b. Reduce total organic HAP emissions from the storage tank by ≥90 percent by weight by venting emissions through a closed-vent system to any combination of control devices (excluding a flare); or | |
| c. Reduce total organic HAP emissions from the storage tank by venting emissions from a non-halogenated vent stream through a closed-vent system to a flare. | |
| 2. Group 1b storage tank | a. Comply with the requirements of subpart WW of this part, except as specified in §63.8010(b); or |
| b. Reduce total organic HAP emissions from the storage tank by ≥80 percent by weight by venting emissions through a closed-vent system to any combination of control devices (excluding a flare); or | |
| c. Reduce total organic HAP emissions from the storage tank by venting emissions from a non-halogenated vent stream through a closed-vent system to a flare. |
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