Code of Federal Regulations (Last Updated: February 15, 2024) |
Title 40 - Protection of Environment |
Chapter I - Environmental Protection Agency |
SubChapter C - Air Programs |
Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories |
Subpart DD - National Emission Standards for Hazardous Air Pollutants from Off-Site Waste and Recovery Operations |
§ 63.690 - Standards: Process vents.
Latest version.
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§ 63.690 Standards: Process vents.
(a) The provisions of this section apply to the control of air emissions from process vents for which § 63.683(c)(1)(i) of this subpart references the use of this section for such air emission control.
(b) The owner or operator must route the vent stream from each affected process vent through a closed-vent system to a control device that meets the standards specified in § 63.693 of this subpart. For the purpose of complying with this paragraph (b), a primary condenser is not a control device; however, a second condenser or other organic recovery device that is operated downstream of the primary condenser is considered a control device.
[64 FR 38970, July 20, 1999]