NSR: New Source Review

Summary

New Source Review is the preconstruction permitting program. Major NSR covers Prevention of Significant Deterioration (PSD) in attainment and unclassifiable areas and Nonattainment NSR in nonattainment areas. Minor NSR covers sources and modifications that are not major and is administered under state implementation plans.

Applicability

Which NSR program applies depends on the area's attainment status for each pollutant, the source's potential to emit, and whether a project is a major modification as defined in the rules.

• 40 CFR 51.160–51.164Minor NSR (SIP requirements)
• 40 CFR 51.165Nonattainment NSR (SIP requirements)
• 40 CFR 51.166PSD (SIP requirements)
• 40 CFR 52.21PSD (federal program)

Requirements

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Monitoring

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Testing

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Recordkeeping

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Reporting

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Definitions

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Official source

• 40 CFR Part 51 (eCFR)

  U.S. Environmental Protection Agency · 40 CFR Part 51

  Not yet reviewed
• 40 CFR Part 52 (eCFR)

  U.S. Environmental Protection Agency · 40 CFR Part 52

  Not yet reviewed