March 31, 2006 - EPA established de minimis emission levels for fine particle pollution. These emissions thresholds will be used to determine whether requirements would apply under EPA's General Conformity rules.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- PM2.5 De Minimis Emission Levels for General Conformity Applicability. Direct Final Rule, amendments (PDF)(7 pp, 86 K, April 5, 2006, 40CFR Pts 51 and 93)
- PM2.5 De Minimis Emission Levels for General Conformity Applicability, Proposed Rule (PDF)(4 pp, 79 K, April 5, 2006)
- Fact Sheet: Direct Final Fine Particle Pollution De Minimis Emission Levels for General Conformity Applicability (PDF)(2 pp, 30 K, March 2006)
- Interim Policy for General Conformity Applicability in PM2.5 Nonattainment Areas (PDF)(2 pp, 65 K, April 2006)