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 Virginia Administrative Code (Last Updated: January 10, 2017)
 Title 9. Environment
 Agency 5. State Air Pollution Control Board
 Chapter 540. Emergency Generator General Permit

  Section 180. Emissions limits  

Latest version.

  • A. Manufacturer certified emissions of each CI affected unit located in an attainment area shall not exceed the limits specified in Table III.

    Table III
    Emissions Limits for CI Units Located in Attainment Areas

    Generator Size (kW)

    Displacement liters/cylinder

    Model Year

    Emission Limits
    g/kW-hr (g/bhp-hr)

    PM

    PM10

    PM2.5

    CO

    VOC

    NOx

    x < 8 kW

    Less than 10

    2010+

    0.4

    0.4

    0.4

    8.0

    7.5*

    (x < 11 bhp)

    (0.30)

    (0.30)

    (0.30)

    (6.0)

    (5.6*)

    8 kW ≤ x < 19 kW

    Less than 10

    2010+

    0.4

    0.4

    0.4

    6.6

    7.5*

    (11 bhp ≤ x < 25 bhp)

    (0.30)

    (0.30)

    (0.30)

    (4.9)

    (5.6*)

    19 kW ≤ x < 37 kW

    Less than 10

    2010+

    0.3

    0.3

    0.3

    5.5

    7.5*

    (25 bhp ≤ x < 50 bhp)

    (0.22)

    (0.22)

    (0.22)

    (4.1)

    (5.6*)

    37 kW ≤ x < 75 kW

    Less than 10

    2010+

    0.4

    0.4

    0.4

    5.0

    4.7*

    (50 bhp ≤ x < 100 bhp)

    (0.30)

    (0.30)

    (0.30)

    (3.7)

    (3.5*)

    75 kW ≤ x < 130 kW

    Less than 10

    2010+

    0.3

    0.3

    0.3

    5.0

    4.0*

    (100 bhp ≤ x < 174 bhp)

    (0.22)

    (0.22)

    (0.22)

    (3.7)

    (3.0*)

    130 kW ≤ x < 560 kW

    Less than 10

    2010+

    0.2

    0.2

    0.2

    3.5

    4.0*

    (174 bhp ≤ x < 751 bhp)

    (0.15)

    (0.15)

    (0.15)

    (2.6)

    (3.0*)

    560 kW ≤ x < 2,237 kW

    Less than 10

    2010+

    0.2

    0.2

    0.2

    3.5

    6.4*

    (751 bhp ≤ x < 3,000 bhp)

    (0.15)

    (0.15)

    (0.15)

    (2.6)

    (4.8*)

    x ≥ 2,237 kW

    Less than 10

    2010

    0.54

    0.54

    0.54

    11.4

    1.3

    9.2

    (x ≥ 3,000 bhp)

    (0.40)

    (0.40)

    (0.40)

    (8.5)

    (1.0)

    (6.9)

    2011+

    0.2

    0.2

    0.2

    3.5

    6.4*

    (0.15)

    (0.15)

    (0.15)

    (2.6)

    (4.8*)

    x ≥ 2,237 kW

    10.0 ≤ x < 15.0

    2010+

    0.27

    0.27

    0.27

    5.0

    7.8*

    (x ≥ 3,000 bhp)

    (0.20)

    (0.20)

    (0.20)

    (3.7)

    (5.8*)

    *Combined limit for VOC and NOx

    B. Emissions of each CI affected unit located in an attainment area during testing shall not exceed the limits specified in Table IV.

    Table IV
    Emissions Limits for CI Units Located in Attainment Areas

    Generator Size (kW)

    Displacement liters/cylinder

    Model Year

    Emission Limits
    (g/kW-hr (g/bhp-hr)

    PM

    PM10

    PM2.5

    CO

    VOC

    NOx

    x < 8 kW

    Less than 10

    2010+

    0.5

    0.5

    0.5

    10.0

    9.4*

    (x < 11 bhp)

    (0.4)

    (0.4)

    (0.4)

    (7.5)

    (7.0*)

    8 kW ≤ x < 19 kW

    Less than 10

    2010+

    0.5

    0.5

    0.5

    8.3

    9.4*

    (11 bhp ≤ x < 25 bhp)

    (0.4)

    (0.4)

    (0.4)

    (6.2)

    (7.0*)

    19 kW ≤ x < 37 kW

    Less than 10

    2010+

    0.38

    0.38

    0.38

    6.9

    9.4*

    (25 bhp ≤ x < 50 bhp)

    (0.28)

    (0.28)

    (0.28)

    (5.1)

    (7.0*)

    37 kW ≤ x < 75 kW

    Less than 10

    2010+

    0.5

    0.5

    0.5

    6.3

    5.9*

    (50 bhp ≤ x < 100 bhp)

    (0.4)

    (0.4)

    (0.4)

    (4.7)

    (4.4*)

    75 kW ≤ x < 130 kW

    Less than 10

    2010+

    0.38

    0.38

    0.38

    6.3

    5.0*

    (100 bhp ≤ x < 174 bhp)

    (0.28)

    (0.28)

    (0.28)

    (4.7)

    (3.7*)

    130 kW ≤ x < 560 kW

    Less than 10

    2010+

    0.25

    0.25

    0.25

    4.4

    5.0*

    (174 bhp ≤ x < 751 bhp)

    (0.19)

    (0.19)

    (0.19)

    (3.3)

    (3.7*)

    560 kW ≤ x < 2,237 kW

    Less than 10

    2010+

    0.25

    0.25

    0.25

    4.4

    8.0*

    (751 bhp ≤ x < 3,000 bhp)

    (0.19)

    (0.19)

    (0.19)

    (3.3)

    (6.0*)

    x ≥ 2,237 kW

    Less than 10

    2010

    0.68

    0.68

    0.68

    14.3

    1.6

    11.5

    (x ≥ 3,000 bhp)

    (0.51)

    (0.51)

    (0.51)

    (10.7)

    (1.2)

    (8.6)

    2011+

    0.25

    0.25

    0.25

    4.4

    8.0*

    (0.19)

    (0.19)

    (0.19)

    (3.3)

    (6.0*)

    x ≥ 2,237 kW

    10.0 ≤ x < 15.0

    2010+

    0.34

    0.34

    0.34

    6.3

    9.8*

    (x ≥ 3,000 bhp)

    (0.25)

    (0.25)

    (0.25)

    (4.7)

    (7.3*)

    *Combined limit for VOC and NOx

    C. Manufacturer certified emissions of each CI affected unit located in a nonattainment attainment area shall not exceed the limits specified in Table V.

    Table V
    Emissions Limits for CI Units Located in Nonattainment Areas

    Generator Size (kW)

    Displacement liters/cylinder

    Model Year

    Emission Limits
    g/kW-hr (g/bhp-hr)

    PM

    PM10

    PM2.5

    CO

    VOC

    NOx

    x < 8 kW

    Less than 10

    2010+

    0.4

    0.4

    0.4

    8.0

    6.4*

    (x < 11 bhp)

    (0.30)

    (0.30)

    (0.30)

    (6.0)

    (4.8*)

    8 kW ≤ x < 19 kW

    Less than 10

    2010+

    0.4

    0.4

    0.4

    6.6

    6.4*

    (11 bhp ≤ x < 25 bhp)

    (0.30)

    (0.30)

    (0.30)

    (4.9)

    (4.8*)

    19 kW ≤ x < 37 kW

    Less than 10

    2010+

    0.3

    0.3

    0.3

    5.5

    6.4*

    (25 bhp ≤ x < 50 bhp)

    (0.22)

    (0.22)

    (0.22)

    (4.1)

    (4.8*)

    37 kW ≤ x < 75 kW

    Less than 10

    2010+

    0.4

    0.4

    0.4

    5.0

    4.7*

    (50 bhp ≤ x < 100 bhp)

    (0.30)

    (0.30)

    (0.30)

    (3.7)

    (3.5*)

    75 kW ≤ x < 130 kW

    Less than 10

    2010+

    0.3

    0.3

    0.3

    5.0

    4.0*

    (100 bhp ≤ x < 174 bhp)

    (0.22)

    (0.22)

    (0.22)

    (3.7)

    (3.0*)

    130 kW ≤ x < 560 kW

    Less than 10

    2010+

    0.2

    0.2

    0.2

    3.5

    4.0*

    (174 bhp ≤ x < 751 bhp)

    (0.15)

    (0.15)

    (0.15)

    (2.6)

    (3.0*)

    560 kW ≤ x < 2,237 kW

    Less than 10

    2010+

    0.2

    0.2

    0.2

    3.5

    6.4*

    (751 bhp ≤ x < 3,000 bhp)

    (0.15)

    (0.15)

    (0.15)

    (2.6)

    (4.8*)

    x ≥ 2,237 kW

    Less than 10

    2010

    0.54

    0.54

    0.54

    11.4

    1.3

    6.4

    (x ≥ 3,000 bhp)

    (0.40)

    (0.40)

    (0.40)

    (8.5)

    (1.0)

    (4.8)

    2011+

    0.2

    0.2

    0.2

    3.5

    6.4*

    (0.15)

    (0.15)

    (0.15)

    (2.6)

    (4.8*)

    x ≥ 2,237 kW

    10.0 ≤ x < 15.0

    2010+

    0.27

    0.27

    0.27

    5.0

    6.4*

    (x ≥ 3,000 bhp)

    (0.20)

    (0.20)

    (0.20)

    (3.7)

    (4.8*)

    *Combined limit for VOC and NOx

    D. Emissions from the operation of each CI affected unit located in a nonattainment area during testing shall not exceed the limits specified in Table VI.

    Table VI
    Emissions Limits During Testing for CI Units Located in Nonattainment Areas

    Generator Size (kW)

    Displacement liters/cylinder

    Model Year

    Emission Limits
    g/kW-hr (g/bhp-hr)

    PM

    PM10

    PM2.5

    CO

    VOC

    NOx

    x < 8 kW

    Less than 10

    2010+

    0.5

    0.5

    0.5

    10.0

    8.0*

    (x < 11 bhp)

    (0.4)

    (0.4)

    (0.4)

    (7.5)

    (6.0*)

    8 kW ≤ x < 19 kW

    Less than 10

    2010+

    0.5

    0.5

    0.5

    8.3

    8.0*

    (11 bhp ≤ x < 25 bhp)

    (0.4)

    (0.4)

    (0.4)

    (6.2)

    (6.0*)

    19 kW ≤ x < 37 kW

    Less than 10

    2010+

    0.38

    0.38

    0.38

    6.9

    8.0*

    (25 bhp ≤ x < 50 bhp)

    (0.28)

    (0.28)

    (0.28)

    (5.1)

    (6.0*)

    37 kW ≤ x < 75 kW

    Less than 10

    2010+

    0.5

    0.5

    0.5

    6.3

    5.9*

    (50 bhp ≤ x < 100 bhp)

    (0.4)

    (0.4)

    (0.4)

    (4.7)

    (4.4*)

    75 kW ≤ x < 130 kW

    Less than 10

    2010+

    0.38

    0.38

    0.38

    6.3

    5.0*

    (100 bhp ≤ x < 174 bhp)

    (0.28)

    (0.28)

    (0.28)

    (4.7)

    (3.7*)

    130 kW ≤ x < 560 kW

    Less than 10

    2010+

    0.25

    0.25

    0.25

    4.4

    5.0*

    (174 bhp ≤ x < 751 bhp)

    (0.19)

    (0.19)

    (0.19)

    (3.3)

    (3.7*)

    560 kW ≤ x < 2,237 kW

    Less than 10

    2010+

    0.25

    0.25

    0.25

    4.4

    8.0*

    (751 bhp ≤ x < 3,000 bhp)

    (0.19)

    (0.19)

    (0.19)

    (3.3)

    (6.0*)

    x ≥ 2,237 kW

    Less than 10

    2010

    0.68

    0.68

    0.68

    14.3

    1.6

    8.0

    (x ≥ 3,000 bhp)

    (0.51)

    (0.51)

    (0.51)

    (10.7)

    (1.2)

    (6.0)

    2011+

    0.25

    0.25

    0.25

    4.4

    8.0*

    (0.19)

    (0.19)

    (0.19)

    (3.3)

    (6.0*)

    x ≥ 2,237 kW

    10.0 ≤ x < 15.0

    2010+

    0.34

    0.34

    0.34

    6.3

    8.0*

    (x ≥ 3,000 bhp)

    (0.25)

    (0.25)

    (0.25)

    (4.7)

    (6.0*)

    *Combined limit for VOC and NOx

    E. Emissions from the operation of each SI affected unit shall not exceed the limits specified in Table VII.

    Table VII

    Emissions Limits for SI Units

    Model Year

    Emissions Limits
    g/kW-hr (g/bhp-hr)

    PM

    PM10

    PM2.5

    CO

    VOC

    NOx

    2010+

    0.015

    0.015

    0.015

    5.3

    1.3

    2.7

    (0.011)

    (0.011)

    (0.011)

    (4.0)

    (1.0)

    (2.0)

    Instead of meeting the limits stated above, the owner may meet the alternative standards below: ( ppmvd at 15% O2)

    540

    86

    160

    F. Combined source-wide emissions from the operation of affected units shall not exceed the limits specified in Table VIII.

    Table VIII
    Combined Source-Wide Emissions Limits for Affected Units

    Pollutant

    Nonattainment Area Emissions (tons/year)

    Attainment Area Emissions (tons/year)

    PM

    1.4

    2.3

    PM10

    1.4

    2.3

    PM2.5

    1.4

    2.3

    NOX

    24.4

    39.4

    SO2

    0.5

    0.5

    CO

    48.0

    77.4

    VOC

    11.8

    19.0

    G. Visible emissions from each affected unit located in an attainment area shall not exceed 10% opacity except during one six-minute period in any one hour in which visible emissions shall not exceed 20% opacity as determined by Reference Method 9. This condition applies at all times except during startup, shutdown, and malfunction.

    H. Visible emissions from each affected unit located in a nonattainment area shall not exceed 5.0% opacity except during one six-minute period in any one hour in which visible emissions shall not exceed 10% opacity as determined by the Reference Method 9. This condition applies at all times except during startup, shutdown, and malfunction.

Historical Notes

Derived from Volume 27, Issue 23, eff. August 17, 2011.

Statutory Authority

§§ 10.1-1307.2 and 10.1-1308 of the Code of Virginia.