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FR Air Documents
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Recent Posting to the Applicability Determination Index (ADI) Database System of Agency Applicability Determinations, Alternative Monitoring Decisions, and Regulatory Interpretations Pertaining to Standards of Performance for New Stationary Sources, National Emission Standards for Hazardous Air Pollutants, and the Stratospheric Ozone Protection Program | PDF Version (86K, About PDF)
- Revisions to the General Conformity Regulations | PDF Version (51K, About PDF)