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Virginia Administrative Code
Title 9. Environment
Title 9. Environment
Agency 5. State Air Pollution Control Board
11/13/2026

Chapter 50.
New and Modified Stationary Sources
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  • Part II.
    Emission Standards
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    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 60
      Applicability and designation of affected facility
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
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      • Section 60
      Applicability and designation of affected facility
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 70
      Definitions
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
      Read all
      • Section 70
      Definitions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 80
      Standard for visible emissions
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
      Read all
      • Section 80
      Standard for visible emissions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 90
      Standard for fugitive dust/emissions
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
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      • Section 90
      Standard for fugitive dust/emissions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 100
      Monitoring
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
      Read all
      • Section 100
      Monitoring
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 110
      Test methods and procedures
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
      Read all
      • Section 110
      Test methods and procedures
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 120
      Waivers
    • Article 1.
      Standards of Performance for Visible Emissions and Fugitive Dust/Emissions (Rule 5-1)
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      • Section 120
      Waivers
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 130
      Applicability and designation of affected facility
    • Article 2.
      Standards of Performance for Odorous Emissions (Rule 5-2)
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      • Section 130
      Applicability and designation of affected facility
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 140
      Standard for odorous emissions
    • Article 2.
      Standards of Performance for Odorous Emissions (Rule 5-2)
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      • Section 140
      Standard for odorous emissions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
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      • Section 150
      Determination of violation
    • Article 2.
      Standards of Performance for Odorous Emissions (Rule 5-2)
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      • Section 150
      Determination of violation
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
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      • Section 160
      [Repealed]
    • Article 3.
      Standards of Performance for Toxic Pollutants (Rule 5-3) [Repealed]
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      • Section 160
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 240
      Applicability and designation of affected facility
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 240
      Applicability and designation of affected facility
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 250
      Definitions
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 250
      Definitions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 260
      Standard for stationary sources
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 260
      Standard for stationary sources
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
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      • Section 270
      Standard for major stationary sources (nonattainment areas)
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 270
      Standard for major stationary sources (nonattainment areas)
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 280
      Standard for major stationary sources (prevention of significant deterioration areas)
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 280
      Standard for major stationary sources (prevention of significant deterioration areas)
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 290
      Standard for visible emissions
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 290
      Standard for visible emissions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 300
      Standard for fugitive dust/emissions
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 300
      Standard for fugitive dust/emissions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 310
      Standard for odor
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 310
      Standard for odor
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 320
      Standard for toxic pollutants
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 320
      Standard for toxic pollutants
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 330
      Compliance
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 330
      Compliance
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 340
      Test methods and procedures
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 340
      Test methods and procedures
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 350
      Monitoring
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
      Read all
      • Section 350
      Monitoring
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 360
      Notification, records and reporting
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 360
      Notification, records and reporting
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 370
      Registration
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 370
      Registration
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 380
      Facility and control equipment maintenance or malfunction
    • Article 4.
      Standards of Performance for Stationary Sources (Rule 5-4)
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      • Section 380
      Facility and control equipment maintenance or malfunction
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 390
      Permits
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 400
      General
    • Article 5.
      Environmental Protection Agency Standards of Performance for New Stationary Sources (Rule 5‑5)
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      • Section 400
      General
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
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      • Section 405
      Authority to implement and enforce standards as authorized by EPA
    • Article 5.
      Environmental Protection Agency Standards of Performance for New Stationary Sources (Rule 5‑5)
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      • Section 405
      Authority to implement and enforce standards as authorized by EPA
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 410
      Designated standards of performance
    • Article 5.
      Environmental Protection Agency Standards of Performance for New Stationary Sources (Rule 5‑5)
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      • Section 410
      Designated standards of performance
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 420
      Word or phrase substitutions
    • Article 5.
      Environmental Protection Agency Standards of Performance for New Stationary Sources (Rule 5‑5)
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      • Section 420
      Word or phrase substitutions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 430
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 430
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 440
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 440
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 450
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 450
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 460
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 460
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 470
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 470
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 480
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 480
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 490
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 490
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 500
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 500
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 510
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 510
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 520
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 520
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 530
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 530
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 540
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 540
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 550
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 550
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 560
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 560
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 570
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 570
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 580
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 580
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 590
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 590
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 600
      [Repealed]
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 600
      [Repealed]
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 610
      Applicability and designation of affected facility
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 610
      Applicability and designation of affected facility
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 610
      Applicability and designation of affected facility
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 610
      Applicability and designation of affected facility
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 620
      Definitions
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 620
      Definitions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 620
      Definitions
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 620
      Definitions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 630
      Standard for engine-generator set emissions
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 630
      Standard for engine-generator set emissions
    • Article 7.
      Emission Standards for Data Center Engine - Generator Sets (Rule 5-7)
      Read all
      • Section 630
      Standard for engine-generator set emissions
    • Article 6.
      Standards of Performance for Regulated Medical Waste Incinerators (Rule 5-6) (Repealed)
      Read all
      • Section 630
      Standard for engine-generator set emissions

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As a service to the public, the Virginia Administrative Code is provided online by the Virginia General Assembly. We are unable to answer legal questions or respond to requests for legal advice, including application of law to specific fact. To understand and protect your legal rights, you should consult an attorney.