Emission Limits for Storage Tanks

As required in § 63.8010, you must meet each emission limit in the following table that applies to your storage tanks. 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.