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 will need Adobe 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)