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40 CFR 51.165

NNSR: Nonattainment New Source Review

Major NSR for areas that do not meet air quality standards.
AirPermitHub SummaryNot yet reviewed

Citation

40 CFR 51.165

Agency

U.S. Environmental Protection Agency

Record type

AirPermitHub summary

Last reviewed

Pending editorial review

This page orients you to the program and points to specific provisions. It does not restate thresholds, limits, or deadlines. Verify with the official agency source.

Summary

Nonattainment NSR applies to major sources and major modifications in areas designated nonattainment for a pollutant. Key elements include the lowest achievable emission rate (LAER) and emission offsets.

Applicability

Applicability depends on the area's nonattainment classification and the definitions in the approved state program.

  • 40 CFR 51.165Permit requirements

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

Definitions are in 40 CFR 51.165(a)(1).

  • 40 CFR 51.165(a)(1)Definitions

Official source

Last updated on AirPermitHub: record created in Phase 1. Version history is tracked in the RegulationVersion table.

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