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  2. General Conformity

De Minimis Emission Threshold Rates

40 CFR § 93.153(b)(1) and (b)(2) provides the de minimis threshold rates, that is, the minimum rates, in tons per year, below which no conformity determination is required, for various criteria pollutants in various areas. The information is summarized here:  De Minimis Tables

General Conformity

  • What is General Conformity?
  • Basic Information About the Rule
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    • Module I: The Basics
    • Module II: Key Concepts
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    • Appendix A Sample Emissions Calculations
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Last updated on June 10, 2024
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