Federal Major Sources located in designated area

Attainment

Potential Nonattainment

Nonattainment

Transitional

Maintenance

Maintain AQ

Prevent nonattainment

Improve AQ

Maintain/improve AQ

Maintain/improve AQ

Major NSR

Minor NSR

Major NSR

Minor NSR

Major NSR

Minor NSR

Major NSR

Minor NSR

Major NSR

Minor NSR

FM for any pollutant, major mod for any pollutant

NAA pollutant > 100 tpy & major mod for NAA pollutant

NAA pollutant > 100 tpy

NAA pollutant > 100 tpy & major mod for NAA pollutant

NAA pollutant > 100 tpy

NAA pollutant > 100 tpy & major mod for NAA pollutant

NAA pollutant > 100 tpy

NAA pollutant > 100 tpy & major mod for NAA pollutant

NAA pollutant > 100 tpy

AQ Mon¹

AQ Mon²

AQ Mon¹

BACT

BACT

LAER

LAER

BACT

NAAQS

NAAQS

NAAQS

NAAQS

NAAQS

NAAQS

NAAQS

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc I

PSD Inc I

PSD Inc I

PSD Inc I

PSD Inc I

PSD Inc I

PSD Inc I

AQRV

AQRV

AQRV

AQRV

AQRV

AQRV

AQRV

AQRV

AQRV

AQRV

and

or

or

and

or

NAQB: Offsets (<1.0:1)

NAQB:

Offsets³

(<1.0:1)

NAQB:

Offsets³

(<1.2:1)

NAQB: Offsets³

(<1.2:1)

NAQB:

Offsets³

(<1.2:1)

NAQB:

Offsets⁴ (<1.0:1)

NAQB:

Offsets⁴

(<1.0:1)

NAQB: Offsets⁴

(<1.0:1)

Add’l Impacts

Add’l Impacts

Add’l Impacts

Add’l Impacts

Alternatives Analysis

Alternatives Analysis

Certify Compliance for all sources

Certify Compliance for all sources

SER to Federal Major -1 Sources located in designated area

NA

NA

BACT⁵

NA

BACT⁵

NA

BACT⁵

NA

BACT⁵

NAAQS

NAAQS

NAAQS

NAAQS

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc II

PSD Inc I

PSD Inc I

PSD Inc I

PSD Inc I

or

NAQB: Offsets³

(<1.0:1)

NAQB: Offsets³

(<1.0:1)

or

NAQB: Offsets⁴

(<1.0:1)

or

NAQB: Offsets⁴ (<1.0:1)

Source > SER impacting designated area

NAAQS

PSD Inc II

Offsets⁶

Offsets⁶

Offsets⁶

Offsets⁶

New concept