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Air Permitting
National Summary
Air emissions permits are divided into two distinct categories: construction permits and operating permits. The applicability of various permitting programs within each category is dependent on the type and quantity of the pollutants emitted, the attainment status of the area where the source is located, and the date the source was constructed or modified. The quantity of emissions from a source will determine whether the source can be classified as a major source or if changes at the source can be classified as a major modification. Major sources must comply with federal construction and operating permit programs, most of which are administered at the state or local level.
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Notices 40 CFR 49 and 51 - Review of New Sources and Modifications in Indian Country: Notice of Action Partially Granting Petition for Reconsideration and Denying Request for Administrative Stay 01/10/2013National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans, Alaska 03/18/2015National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans, Indiana 03/15/2013National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans, Pennsylvania 03/27/2015National
Final Regulations 40 CFR 52 - Air Quality Implementation Plans, Pennsylvania 03/27/2015National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans, Texas 03/30/2015National
Final Regulations 40 CFR 52 - Air Quality Implementation Plans, Texas 03/30/2015National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans, Texas; Extension of Public Comment Period 03/12/2014National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans; Colorado 09/06/2013National
Final Regulations 40 CFR 52 - Air Quality Implementation Plans; Maryland 07/06/2015National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans; Texas 10/25/2013National
Proposed Regulations 40 CFR 52 - Air Quality Implementation Plans; Texas 01/06/2014National
Final Regulations 40 CFR 52 - Air Quality Implementation Plans; Texas 01/06/2014National
Final Regulations 40 CFR 52 - Air Quality Implementation Plans; Texas 01/06/2014National
Final Regulations 40 CFR 52 - Air Quality Implementation Plans; Texas 01/06/2014National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans - Utah; Permit: New and Modified Sources 06/12/2013National
Final Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; Colorado; Construction Permit Program Fee Increases; Construction Permit Regulation of PM-2.5; Regulation 3 02/13/2014National
Final Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; Ohio 02/20/2013National
Final Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; Utah; Revisions to UAC Rule 401--Permit: New and Modified Sources 05/13/2014National
Final Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; Utah; Revisions to Utah Administrative Code--Permit: New and Modified Sources 02/06/2014National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; Permit Exemption Rule 05/15/2013National
Final Regulations 40 CFR 52 - Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; Permit Exemption Rule 08/01/2013National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Texas 04/01/2014National
Final Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Texas 04/01/2014National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Texas; Control of Air Pollution by Permits for New Construction or Modification; Permits for Specific Designated Facilities 11/21/2013National
Final Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Texas; Control of Air Pollution by Permits for New Construction or Modification; Permits for Specific Designated Facilities 11/21/2013National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Texas; Revisions for Permitting of Particulate Matter With Diameters Less Than or Equal to 2.5 Micrometers (PM2.5) 02/14/2014National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Utah; Revisions to Utah Rule R307-107; General Requirements; Breakdowns 05/09/2013National
Proposed Regulations 40 CFR 52 - Revision of Air Quality Implementation Plan; California; Sacramento Metropolitan Air Quality Management District; Stationary Source Permits 02/14/2013National
Final Regulations 40 CFR 52 - Revision of Air Quality Implementation Plan; California; Sacramento Metropolitan Air Quality Management District; Stationary Source Permits 08/29/2013National
Questions & Answers Air Emission Calculation Question - We are a manufacturer of aluminum automobile parts... 09/02/2004National
Guidance Documents Air Emissions Inventory Reporting Requirements  National
Regulatory Analysis Air Emissions Permits  National
Checklists Air Quality Compliance Checklist  National
Notices CAA Operating Permit Program; Petition for Objection to State Operating Permit for Yuhuang Chemical Company, Inc. Methanol Plant in Louisiana 09/27/2016National
Guidance Documents Emissions Calculations: Coating and Painting Operations  National
Questions & Answers How can I calculate emissions based on an inventory of stationary fuel burning equipment on my campus? 09/14/2010National
Instructions How to Apply for a Notice of Construction (Pre-Construction) Air Quality Permit (ECY 070-121)  National
Questions & Answers I am looking for some information on the NESHAP 40 CFR 63 CCCCCC. I want to validate that it is going into compliance still for Jan 10, 2011 and ALSO if there is a bit more verbiage anywhere in regards to the adaptors that are acceptable to vapor re 03/16/2010National
Guidance Documents National Stack Testing Guidance  National