SIP Status Reports

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Status of SIP Required Elements for Colorado Designated Areas

Required Elements by NAAQS / Area
NOTE: As of 03/12/2021, these reports are no longer being updated. For the latest information, see the SIP Status Tools.

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Colorado: CO (1971) / Colorado Springs Area    
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
CO contingency measures 11/15/1993 02/22/1994 Approval 02/23/1998 62 FR 67006
CO Emissions Inventory 11/15/1992 01/04/1993 Approval 02/21/1997 61 FR 67466
CO Nonattainment NSR 11/15/1993 01/15/1993 Approval 10/17/1994 59 FR 42500
Oxygenated fuels 11/15/1992 11/27/1992 Approval 08/24/1994 59 FR 37698
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Colorado: CO (1971) / Denver-Boulder Area   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
CO Attainment Plan 11/15/1992 07/11/1994 Approval 04/09/1997 62 FR 10690
CO contingency measures 11/15/1992 07/11/1994 Approval 04/09/1997 62 FR 10690
CO Emissions Inventory 11/15/1992 01/04/1993 Approval 02/21/1997 61 FR 67466
CO Nonattainment NSR 11/15/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
Oxygenated fuels 11/15/1992 11/27/1992 Approval 08/24/1994 59 FR 37698
TCM to offset growth 11/15/1992 07/11/1994 Approval 04/09/1997 62 FR 10690
VMT Forecast 11/15/1992 07/11/1994 Approval 04/09/1997 62 FR 10690
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Colorado: CO (1971) / Fort Collins Area   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
CO contingency measures 11/15/1993 02/22/1994 Approval 02/23/1998 62 FR 67006
CO Emissions Inventory 11/15/1992 01/04/1993 Approval 02/21/1997 61 FR 67466
CO Nonattainment NSR 11/15/1993 01/15/1993 Approval 10/17/1994 59 FR 42500
Oxygenated fuels 11/15/1992 11/27/1992 Approval 08/24/1994 59 FR 37698
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Colorado: CO (1971) / Greeley Area   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
CO Nonattainment NSR 11/15/1993 01/15/1993 Approval 10/17/1994 59 FR 42500
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Colorado: CO (1971) / Longmont Area   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
CO Attainment Plan 11/15/1992 07/13/1994 Approval 04/09/1997 62 FR 10690
CO contingency measures 11/15/1992 07/13/1994 Approval 04/09/1997 62 FR 10690
CO Emissions Inventory 11/15/1992 01/04/1993 Approval 02/21/1997 61 FR 67466
CO Nonattainment NSR 11/15/1993 01/15/1993 Approval 10/17/1994 59 FR 42500
Oxygenated fuels 11/15/1992 11/27/1992 Approval 08/24/1994 59 FR 37698
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Colorado: Ozone-1Hr (1979) / Denver-Boulder Area    
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
I/M Basic 11/15/1993 01/14/1994 Approval 12/08/1994 59 FR 55584
Nonattainment NSR rules 11/15/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
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Colorado: Ozone-8Hr (1997) / Denver-Boulder-Greeley-Ft. Collins-Loveland    
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
Emission Inventory 06/13/2013        
Emission Statement 06/13/2013        
Nonattainment NSR rules - Marginal 06/13/2013 05/13/2013 Approval 02/24/2016 81 FR 3963
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Colorado: Ozone-8Hr (2008) / Denver-Boulder-Greeley-Ft. Collins-Loveland    
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
Contingency Measures VOC and NOX 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
Emission Inventory 07/20/2014 05/31/2017 Approval 08/02/2018 83 FR 31068
Emission Statement 07/20/2014 05/31/2017 Approval 08/02/2018 83 FR 31068
I/M Basic 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
I/M Enhanced 08/03/2020        
Nonattainment NSR rules - Marginal 07/20/2015 05/31/2017 Approval 08/02/2018 83 FR 31068
Nonattainment NSR rules - Moderate 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
Nonattainment NSR rules - Serious 08/03/2020        
Ozone Attainment Demonstration 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
Ozone Attainment Demonstration - Serious 08/03/2020        
RACT Non-CTG VOC for Major Sources 01/01/2017 05/31/2017 Completeness 12/01/2017  
RACT NOX for Major Sources 01/01/2017 05/31/2017 Completeness 12/01/2017  
RACT VOC CTG Aerospace 01/01/2017 05/31/2017 Completeness 12/01/2017  
RACT VOC CTG Auto and Light-Duty Truck Assembly Coatings (2008) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Bulk Gasoline Plants 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Equipment Leaks from Natural Gas/Gasoline Processing Plants 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Factory Surface Coating of Flat Wood Paneling 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Fiberglass Boat Manufacturing Materials (2008) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Flat Wood Paneling Coatings (2006) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Flexible Packaging Printing Materials (2006) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Fugitive Emissions from Synthetic Organic Chemical Polymer and Resin Manufacturing Equipment 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Graphic Arts - Rotogravure and Flexography 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Industrial Cleaning Solvents (2006) 01/01/2017 05/31/2017 Completeness 12/01/2017  
RACT VOC CTG Large Appliance Coatings (2007) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Large Petroleum Dry Cleaners 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Leaks from Gasoline Tank Trucks and Vapor Collection Systems 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Leaks from Petroleum Refinery Equipment 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Lithographic Printing Materials and Letterpress Printing Materials (2006) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Manufacture of High-Density Polyethylene, Polypropylene, and Polystyrene Resins 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Manufacture of Pneumatic Rubber Tires 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Manufacture of Synthesized Pharmaceutical Products 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Metal Furniture Coatings (2007) 01/01/2017 05/31/2017 Completeness 12/01/2017  
RACT VOC CTG Miscellaneous Industrial Adhesives (2008) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Miscellaneous Metal Products Coatings (2008) 01/01/2017 05/31/2017 Completeness 12/01/2017  
RACT VOC CTG Oil and Natural Gas Industry (2016) 10/27/2018 05/14/2018 Completeness 11/14/2018  
RACT VOC CTG Paper, Film, and Foil Coatings (2007) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Petroleum Liquid Storage in External Floating Roof Tanks 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Plastic Parts Coatings (2008) 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Refinery Vacuum Producing Systems, Wastewater Separators, and Process Unit Turnarounds 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG SOCMI Air Oxidation Processes 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG SOCMI Distillation and Reactor Processes 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Shipbuilding/repair 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Solvent Metal Cleaning 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Stage I Vapor Control Systems - Gasoline Service Stations 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Storage of Petroleum Liquids in Fixed Roof Tanks 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating for Insulation of Magnet Wire 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Automobiles and Light-Duty Trucks 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Cans 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Coils 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Fabrics 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Large Appliances 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Metal Furniture 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Miscellaneous Metal Parts and Products 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Surface Coating of Paper 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Tank Truck Gasoline Loading Terminals 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Use of Cutback Asphalt 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RACT VOC CTG Wood Furniture 01/01/2017 05/31/2017 Completeness 12/01/2017  
RFP VOC and NOX - Moderate 01/01/2017 05/31/2017 Approval 08/02/2018 83 FR 31068
RFP VOC and NOX - Serious 08/03/2020        
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Colorado: Ozone-8Hr (2015) / Denver Metro/North Front Range    
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
Emissions Inventories (Section 182(a)(1)) 08/03/2020 07/27/2020 Completeness 01/27/2021  
Emissions Statement Regulations (Section 182(a)(3)(B)) 08/03/2020 07/27/2020 Completeness 01/27/2021  
Nonattainment New Source Review (NNSR) - Marginal 08/03/2021 07/27/2020 Completeness 01/27/2021  
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Colorado: PM-10 (1987) / Adams, Denver, and Boulder Counties; Denver Metropolitan area    
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 11/15/1993 12/14/1993 Approval 12/23/1996 61 FR 49682
PM-10 Nonattainment NSR (Moderate) 06/30/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 11/15/1991 06/07/1993 Approval 05/19/1997 62 FR 18716
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Colorado: PM-10 (1987) / Archuleta County; Pagosa Springs   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 11/15/1993 12/14/1993 Approval 06/20/1994 59 FR 26126
PM-10 Nonattainment NSR (Moderate) 06/30/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 11/15/1991 02/26/1993 Approval 06/20/1994 59 FR 26126
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Colorado: PM-10 (1987) / Fremont County; Canon City Area   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 11/15/1993 12/14/1993 Approval 02/13/1995 59 FR 64332
PM-10 Nonattainment NSR (Moderate) 06/30/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 11/15/1991 04/20/1992 Approval 01/24/1994 58 FR 68036
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Colorado: PM-10 (1987) / Pitkin County; Aspen   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 11/15/1993 12/14/1993 Approval 11/14/1994 59 FR 47088
PM-10 Nonattainment NSR (Moderate) 06/30/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 11/15/1991 01/15/1992 Approval 11/14/1994 59 FR 47088
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Colorado: PM-10 (1987) / Prowers County; Lamar   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 11/15/1993 12/14/1993 Approval 02/13/1995 59 FR 64332
PM-10 Nonattainment NSR (Moderate) 06/30/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 11/15/1991 06/03/1993 Approval 07/11/1994 59 FR 29732
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Colorado: PM-10 (1987) / Routt County (part); Steamboat Springs   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 07/20/1995 09/16/1997 Approval 03/02/1998 62 FR 68188
PM-10 Nonattainment NSR (Moderate) 07/20/1995 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 07/20/1995 09/16/1997 Approval 03/02/1998 62 FR 68188
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Colorado: PM-10 (1987) / San Miguel County; Telluride   
 
SIP Requirement Deadline Submittal Date Latest Action Date of Latest Action FR Citation
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FR notice
PM-10 contingency measures (Moderate) 11/15/1993 12/14/1993 Approval 10/19/1994 59 FR 47807
PM-10 Nonattainment NSR (Moderate) 06/30/1992 01/15/1993 Approval 10/17/1994 59 FR 42500
PM-10 SIP (Moderate) 11/15/1991 03/23/1993 Approval 12/03/1996 61 FR 51784
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