Technical Support Document 

for the

Development of the 2017 / 2020

Emission Inventories

for Regional Air Quality Modeling

in the Northeast / Mid-Atlantic Region

Version 3.3

Prepared for:

Mid-Atlantic Regional Air Management Association (MARAMA)

8600 LaSalle Road, Suite 636

Towson, MD 21286

(443) 901-1882

January 23, 2012

MARAMA Contract Agreement FY2011-004

Submitted by

AMEC Environment & Infrastructure SRA International, Inc. 

4021 Stirrup Creek Drive 652 Peter Jefferson Parkway

Suite 100 Suite 300

Durham, NC 27703 Charlottesville, VA 22911

919 381-9900 571 499-0833
Acknowledgements

This work was supported by funds provided by MARAMA’s Memorandum of Agreement with 

the Ozone Transport Commission, which is funded by USEPA grant agreement XA973180 –

Regional Haze Planning in the Northeast and Mid-Atlantic States.

About MARAMA

The Mid-Atlantic Regional Air Management Association, Inc. is a voluntary, non-profit 

association of ten state and local air pollution control agencies. MARAMA's mission is to 

strengthen the skills and capabilities of member agencies and to help them work together to 

prevent and reduce air pollution in the Mid-Atlantic Region. MARAMA provides cost-effective 

approaches to regional collaboration by pooling resources to develop and analyze data, share 

ideas, and train staff to implement common requirements.
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Table of Contents

1.0 INTRODUCTION.................................................................................................................. 1

1.1 INVENTORY PURPOSE ................................................................................................ 1

1.2 POLLUTANTS................................................................................................................ 2

1.3 SOURCE CATEGORIES................................................................................................ 2

1.4 DATA FORMATS ........................................................................................................... 4

1.5 INVENTORY VERSIONS ............................................................................................... 4

1.5.1 Version 1 Modeling Inventory.................................................................................. 4

1.5.2 Version 2 Modeling Inventory.................................................................................. 5

1.5.3 Version 3 Modeling Inventories with Existing and Potential Controls....................... 5

1.6 REPORT ORGANIZATION............................................................................................. 6

2.0 IDENTIFICATION OF EGU AND NONEGU POINT SOURCES........................................... 7

3.0 GROWTH PROJECTION FACTORS FOR NONEGUS AND AREA SOURCES ................15

3.1 AEO FUEL USE PROJECTIONS...................................................................................15

3.2 POPULATION PROJECTIONS .....................................................................................16

3.3 EMPLOYMENT PROJECTIONS ...................................................................................23

3.4 VEHICLE MILES TRAVELED PROJECTIONS..............................................................23

3.5 NO GROWTH ASSIGNMENT FOR CERTAIN AREA SOURCE CATEGORIES.............23

3.6 EPA 2020 PROJECTIONS FOR RESIDENTIAL WOOD AND LIVESTOCK ...................27

3.7 SCC, SIC, NAICS AND GROWTH PARAMETER CROSSWALK...................................28

3.8 FINAL GROWTH FACTORS FOR NONEGU / AREA SOURCES ..................................28

3.9 EMISSION REDUCTION CREDITS...............................................................................30

4.0 AREA SOURCE CONTROL FACTORS .............................................................................33

4.1 FEDERAL RULES AFFECTING AREA SOURCES........................................................33

4.2 FEDERAL MACT RULES ..............................................................................................34

4.3 RECENT CONTROL TECHNIQUE GUIDELINES..........................................................35

4.4 OTC MODEL RULES FOR AREA SOURCES................................................................37

4.4.1 OTC Model Rule for Adhesives/Sealants...............................................................39

4.4.2 OTC Model Rules for Architectural and Industrial Maintenance Coatings ..............40

4.4.3 OTC Model Rule for Asphalt Paving ......................................................................43

4.4.4 OTC Model Rules for Consumer Products.............................................................44

4.4.5 OTC Model Rules for Mobile Equipment Repair and Refinishing ...........................46

4.4.6 OTC Model Rules for Portable Fuel Containers .....................................................49

4.4.7 OTC Model Rule for Solvent Cleaning ...................................................................50

4.4.8 OTC Model Rules for ICI Boilers............................................................................51

4.4.9 OTC Model Rule for New, Small, Natural Gas-fired Boilers ...................................53

4.4.10 MANE-VU Low Sulfur Fuel Oil Strategy .............................................................55
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5.0 NONEGU POINT SOURCE CONTROL FACTORS............................................................56

5.1 FEDERAL ACTIONS AFFECTING NONEGU POINT SOURCES ..................................56

5.2 RECENT CONTROL TECHNIQUE GUIDELINES..........................................................59

5.3 OTC MODEL RULES FOR NONEGUS ..........................................................................59

5.3.1 OTC 2006 Model Rule for Adhesives and Sealants ...............................................62

5.3.2 OTC 2009/2010 Model Rule for Large Storage Tanks ...........................................63

5.3.3 OTC 2006 Model Rule for Asphalt Production Plants.............................................64

5.3.4 OTC 2006 Model Rule for Cement Manufacturing Plants.......................................64

5.3.5 OTC 2006 Model Rule for Glass and Fiberglass Furnaces ....................................66

5.3.6 OTC 2006 Model Rule for ICI Boilers.....................................................................66

5.4 FUEL OIL SULFUR LIMITS ...........................................................................................69

5.5 STATE-SPECIFIC NONEGU CONTROL FACTORS .....................................................70

6.0 NONROAD MODEL CATEGORIES ...................................................................................72

6.1 STATE REVIEW OF NMIM FUEL CHARACTERISTICS................................................72

6.2 USE OF EXTERNAL FILES IN THE PROJECTION YEAR NMIM RUNS........................73

6.3 NMIM RUN SPECIFICATIONS......................................................................................73

6.4 REMOVAL OF AIRPORT GROUND SUPPORT EQUIPMENT ......................................74

6.5 STATE AND STAKEHOLDER REVIEW AND COMMENT .............................................74

6.6 CHANGES MADE FOR VERSION 3 MODEL RUNS......................................................74

6.7 NMIM/NONROAD GROWTH AND CONTROL INFORMATION.....................................76

7.0 NONROAD MAR SOURCE CATEGORIES........................................................................80

7.1 COMMERCIAL MARINE VESSELS...............................................................................80

7.1.1 CMV Diesel Growth Factors...................................................................................80

7.1.2 CMV Diesel Control Factors...................................................................................81

7.1.3 CMV Residual Oil Growth Factors .........................................................................82

7.1.4 CMV Residual Oil Control Factors .........................................................................82

7.1.5 Military Vessels Growth and Control Factors .........................................................83

7.2 AIRCRAFT ....................................................................................................................83

7.2.1 Aircraft Growth Factors ..........................................................................................84

7.2.2 Aircraft Control Factors ..........................................................................................85

7.3 RAILROAD EQUIPMENT ..............................................................................................86

7.3.1 Railroad Growth Factors ........................................................................................87

7.3.2 Railroad Control Factors ........................................................................................87

8.0 SUMMARY OF PROJECTED EMISSIONS ........................................................................89

8.1 AREA SOURCE PROJECTED EMISSIONS..................................................................89

8.2 NONEGU POINT SOURCE PROJECTED EMISSIONS ................................................98

8.3 NONROAD NMIM SOURCE PROJECT EMISSIONS ..................................................107

8.4 NONROAD COMMERCIAL MARINE VESSEL EMISSIONS........................................115
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8.5 NONROAD AIRPORT EMISSIONS.............................................................................123

8.6 NONROAD RAILROAD LOCOMOTIVE EMISSIONS ..................................................131

9.0 PREPARATION OF SMOKE MODEL FILES ...................................................................139

9.1 NONEGU POINT SOURCE SMOKE EMISSION FILES...............................................139

9.2 AREA SOURCE SMOKE EMISSION FILES ................................................................139

9.3 NONROAD NMIM SMOKE EMISSION FILES..............................................................139

9.4 NONROAD MAR SMOKE EMISSION FILES...............................................................140

10.0 FINAL DELIVERABLES.................................................................................................141

11.0 REFERENCES................................................................................................................146
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List of Appendices

Appendix A Identification of EGUs and NonEGUs

Appendix B1 AEO2010 New England.xls

Appendix B2 AEO2010 Mid Atlantic.xls

Appendix B3 AEO2010 South Atlantic.xls

Appendix B4 AEO2011 New England.xls

Appendix B5 AEO2011 Mid Atlantic.xls

Appendix B6 AEO2011 South Atlantic.xls

Appendix B7 AEO2010 vs AEO2011 Comparison.docx

Appendix C Population Factors.xls

Appendix D Employment Factors.xls

Appendix E VMT Factors.xls

Appendix F USEPA2020 Residential Wood Projection Factors

Appendix G USEPA 2020 Livestock Projection Factors

Appendix H Stage II Control Factors

Appendix I Area Source ICI Boiler Control Factor Derivation.xlsx

Appendix J Area Source New Small Gas-Fired Boiler Control Factor Derivation

Appendix K Fuel Oil Sulfur Contents and MANE-VU Limits

Appendix L – Supporting Data for Final MAR Source Growth and Control Factors for 2017 and 

2020
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List of Exhibits

Exhibit 2.1 2007 EGU and NonEGU Point Source CO Emissions

Exhibit 2.2 2007 EGU and NonEGU Point Source NH3 Emissions

Exhibit 2.3 2007 EGU and NonEGU Point Source NOx Emissions

Exhibit 2.4 2007 EGU and NonEGU Point Source PM10-PRI Emissions

Exhibit 2.5 2007 EGU and NonEGU Point Source PM25-PRI Emissions

Exhibit 2.6 2007 EGU and NonEGU Point Source SO2 Emissions

Exhibit 2.7 2007 EGU and NonEGU Point Source VOC Emissions

Exhibit 3.1 Growth Factors for Coal Fuel Use by AEO Region 2007 - 2025

Exhibit 3.2 Growth Factors for Residual Oil Fuel Use by AEO Region 2007 - 2025

Exhibit 3.3 Growth Factors for Distillate Oil Fuel Use by AEO Region 2007 - 2025

Exhibit 3.4 Growth Factors for Natural Gas Fuel Use by AEO Region 2007 - 2025

Exhibit 3.5 Growth Factors for Gasoline Fuel Use by AEO Region 2007 – 2025

Exhibit 3.6 Population Growth Factors by AEO Region 2007 – 2025

Exhibit 3.7. Employment Growth Factors by AEO Region 2007 - 2025

Exhibit 3.8 State VMT Growth Factors 2007 – 2020

Exhibit 3.9 Area Source Categories with No Growth Assignment 

Exhibit 3.10 State Recommendations to Address Negative Growth for the NonEGU Point 

Source Sector

Exhibit 3.11 State Recommendations to Address Negative Growth and Other Growth Factors 

for the Area Source Sector

Exhibit 4.1 USEPA Estimated Percent Reductions for RICE MACT Standard

Exhibit 4.2 Summary of Area Source OTC Control Measures

Exhibit 4.3 State Recommendations for OTC Adhesives/Sealants Rule

Exhibit 4.4 State Recommendations for OTC AIM Rule

Exhibit 4.5 State Recommendations for OTC Cutback and Emulsified Asphalt Paving 

Exhibit 4.6 VOC Emission Factors for Consumer Products 

Exhibit 4.7 State Recommendations for OTC 2001 and 2006 Consumer Products Rules

Exhibit 4.8 VOC Emission Reductions for Auto Refinishing

Exhibit 4.9 State Recommendations for OTC Auto Refinishing Rule

Exhibit 4.10 State Recommendations for OTC and Federal Portable Fuel Container Rules

Exhibit 4.11 State Recommendations for OTC Solvent Cleaning Rule
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Exhibit 4.12 Area Source Emission Reductions from New Jersey ICI Boiler NOx Rules

Exhibit 4.13 OTC Resolution 06-02 Guidelines for ICI Boiler NOx Rules

Exhibit 4.14 NOx Emission Reductions Expected from the OTC Rule for New, Small, Natural 

Gas-fired Units

Exhibit 4.15 MANE-VU Low Sulfur Fuel Oil Strategy

Exhibit 5.1 USEPA Estimated Percent Reductions for RICE MACT Standard

Exhibit 5.2 Summary of Point Source OTC Control Measures

Exhibit 5.3 State Recommendations for OTC Adhesives/Sealants Rule

Exhibit 5.4 NonEGU Point Source Emission Reductions from New Jersey ICI Boiler NOx Rules

Exhibit 5.5 OTC Resolution 06-02 Guidelines for ICI Boiler NOx Rules

Exhibit 6.1 Control Programs Included in the NMIM/NONROAD Model

Exhibit 7.1 CMV Diesel Control Factors by Year, Pollutant, and SCC

Exhibit 7.2 CMV Residual Oil Control Factors by Year, Pollutant, and SCC

Exhibit 7.3 Crosswalk between SCC and FAA Operations Type 

Exhibit 7.4 Region-wide Growth Factors from 2007 by FAA Operations Type

Exhibit 7.5 Rail Control Factors by Year, Pollutant, and SCC

Exhibit 8.1 2007 and Projected Future Year Area Source CO Emissions

Exhibit 8.2 2007 and Projected Future Year Area Source NH3 Emissions

Exhibit 8.3 2007 and Projected Future Year Area Source NOx Emissions

Exhibit 8.4 2007 and Projected Future Year Area Source PM10-PRI Emissions

Exhibit 8.5 2007 and Projected Future Year Area Source PM25-PRI Emissions

Exhibit 8.6 2007 and Projected Future Year Area Source SO2 Emissions

Exhibit 8.7 2007 and Projected Future Year Area Source VOC Emissions

Exhibit 8.8 2007 and Projected Future Year NonEGU Point Source CO Emissions

Exhibit 8.9 2007 and Projected Future Year NonEGU Point Source NH3 Emissions

Exhibit 8.10 2007 and Projected Future Year NonEGU Point Source NOx Emissions

Exhibit 8.11 2007 and Projected Future Year NonEGU Point Source PM10-PRI Emissions

Exhibit 8.12 2007 and Projected Future Year NonEGU Point Source PM25-PRI Emissions

Exhibit 8.13 2007 and Projected Future Year NonEGU Point Source SO2 Emissions

Exhibit 8.14 2007 and Projected Future Year NonEGU Point Source VOC Emissions

Exhibit 8.15 2007 and Projected Future Year NONROAD Source CO Emissions
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Exhibit 8.16 2007 and Projected Future Year NONROAD Source NH3 Emissions

Exhibit 8.17 2007 and Projected Future Year NONROAD Source NOx Emissions

Exhibit 8.18 2007 and Projected Future Year NONROAD Source PM10-PRI Emissions

Exhibit 8.19 2007 and Projected Future Year NONROAD Source PM25-PRI Emissions

Exhibit 8.20 2007 and Projected Future Year NONROAD Source SO2 Emissions

Exhibit 8.21 2007 and Projected Future Year NONROAD Source VOC Emissions

Exhibit 8.22 2007 and Projected Future Year Marine Vessel CO Emissions

Exhibit 8.23 2007 and Projected Future Year Marine Vessel NH3 Emissions

Exhibit 8.24 2007 and Projected Future Year Marine Vessel NOx Emissions

Exhibit 8.25 2007 and Projected Future Year Marine Vessel PM10-PRI Emissions

Exhibit 8.26 2007 and Projected Future Year Marine Vessel PM25-PRI Emissions

Exhibit 8.27 2007 and Projected Future Year Marine Vessel SO2 Emissions

Exhibit 8.28 2007 and Projected Future Year Marine Vessel VOC Emissions

Exhibit 8.29 2007 and Projected Future Year Airport CO Emissions

Exhibit 8.30 2007 and Projected Future Year Airport NH3 Emissions

Exhibit 8.31 2007 and Projected Future Year Airport NOx Emissions

Exhibit 8.32 2007 and Projected Future Year Airport PM10-PRI Emissions

Exhibit 8.33 2007 and Projected Future Year Airport PM25-PRI Emissions

Exhibit 8.34 2007 and Projected Future Year Airport SO2 Emissions

Exhibit 8.35 2007 and Projected Future Year Airport VOC Emissions

Exhibit 8.36 2007 and Projected Future Year Railroad Locomotive CO Emissions

Exhibit 8.37 2007 and Projected Future Year Railroad Locomotive NH3 Emissions

Exhibit 8.38 2007 and Projected Future Year Railroad Locomotive NOx Emissions

Exhibit 8.39 2007 and Projected Future Year Railroad Locomotive PM10-PRI Emissions

Exhibit 8.40 2007 and Projected Future Year Railroad Locomotive PM25-PRI Emissions

Exhibit 8.41 2007 and Projected Future Year Railroad Locomotive SO2 Emissions

Exhibit 8.42 2007 and Projected Future Year Railroad Locomotive VOC Emissions

Exhibit 10.1 – NIF Data Files 

Exhibit 10.2 – Emission Summary Files 

Exhibit 10.3 – SMOKE Files
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Acronyms and Abbreviations

Acronym Description

CAMD Clean Air Markets Division (USEPA)

CAP Criteria Air Pollutant

CEM Continuous Emission Monitoring 

CMV Commercial Marine Vessel

CO Carbon Monoxide 

CTG Control Technique Guideline

EGU Electric Generating Unit

ERTAC Eastern Regional Technical Advisory Committee

FIPS Federal Information Processing Standard

GACT Generally available control technology

GSE Ground Support Equipment

MACT Maximum Achievable Control Technology

MANE-VU Mid-Atlantic/Northeast Visibility Union

MANE-VU+VA MANE-VU States plus Virginia

MAR Marine, Airport, Rail 

MARAMA Mid-Atlantic Regional Air Management Association

MOBILE6 USEPA model

MOVES Motor Vehicle Emissions Simulator

NAICS North American Industry Classification System code

NCD National County Database 

NEI National Emission Inventory

NESCAUM Northeast States for Coordinated Air Use Management

NH3 Ammonia

NIF3.0 National Emission Inventory Input Format Version 3.0

NMIM National Mobile Input Model

NOF3.0 National Emission Inventory Output Format Version 3.0

NONROAD USEPA model

NOx Oxides of nitrogen

OAQPS Office of Air Quality Planning and Standards (USEPA)

ORL One-record-per-line (SMOKE Format)

OTAQ Office of Transportation and Air Quality (USEPA)

PFC Portable Fuel Container

PM-CON Primary PM, Condensable portion only ( < 1 micron)

PM-FIL Primary PM, Filterable portion only

PM-PRI Primary PM, includes filterables and condensables

PM-PRI= PM-FIL + PM-CON
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Acronym Description

PM10-FIL Primary PM10, Filterable portion only

PM10-PRI Primary PM10, includes filterables and condensables, 

PM10- PRI = PM0-FIL + PM-CON

PM25-FIL Primary PM2.5, Filterable portion only

PM25-PRI Primary PM2.5, includes filterables and condensables

PM25-PRI= PM25-FIL + PM-CON

RWC Residential Wood Combustion

SEMAP Southeast Modeling, Analysis and Planning

SIC Standard Industrial Classification code

SIP State Implementation Plan

SCC Source Classification Code

S/L State/local

SMOKE Sparse Matrix Operator Kernel Emissions

SO2 Sulfur Dioxide

USEPA U.S Environmental Protection Agency

VISTAS Visibility Improvement State and Tribal Association of the Southeast 

VMT Vehicle Miles Traveled

VOC Volatile Organic Compounds
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1.0 INTRODUCTION

This technical support document (TSD) explains the data sources and methods used to 

prepare criteria air pollutant (CAP) and ammonia (NH3) emission projections for 2017 and 

2020 for the Northeast and Mid-Atlantic/Northeast region. The region includes the 

jurisdictions in the Mid-Atlantic / Northeast Visibility Union (MANE-VU) area plus 

Virginia. In this document, these jurisdictions will be referred to as the MANE-VU+VA 

region. The MANE-VU+VA region includes Connecticut, Delaware, the District of 

Columbia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, 

Pennsylvania, Rhode Island, Vermont, and Virginia. 

1.1 INVENTORY PURPOSE

The MANE-VU+VA regional inventories will be used to concurrently address national 

ambient air quality standard (NAAQS) requirements for the new ozone and fine particle 

ambient standards and to evaluate progress towards long-term regional haze goals. The 

emission inventories will support a single integrated, one-atmosphere air quality modeling 

platform, state air quality attainment demonstrations, and other state air quality technical 

analyses. 

The future year inventories account for emissions growth associated with changes in 

population, fuel use, and economic activity. The future year inventories also refect the 

emission changes between 2007 and the two future years that are projected under two 

emission control scenarios: 

Existing Controls – this scenario represents the best estimates for the future year,

accounting for all in-place controls that are fully adopted into federal or individual 

state regulations or State Implementation Plans (SIPs). In the past, this inventory is 

also referred to as the “on-the-books (OTB)” inventory. Air quality modelers often 

refer to this scenario as the “future base case.”

Potential New OTC Controls – this scenario accounts for all of the emission 

reductions from the existing control scenario plus new state or regional measures 

that are under consideration by the Ozone Transport Commission (OTC) or 

individual states. This is a “what if” scenario that assumes that all states in the 

MANE-VU+VA region except Virginia will adopt all new OTC control measures 

under consideration by 2017. Air quality modelers sometimes call this the “future 

control case.” It does not include any potential new federal control measures that 

are under consideration. 
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The U.S. Environmental Protection Agency (USEPA) has provided guidance on 

developing emission projections to be used with models and other analyses for 

demonstrating attainment of air quality goals for ozone, fine particles, and regional haze 

(USEPA 1999, USEPA 2005a, USEPA 2007a). In addition, the USEPA has recently 

developed its own emission projections that provide data on growth and future controls 

that were useful in developing the MANE-VU+VA future year emission inventories 

(USEPA 2010a). The guidance and information available from USEPA was followed and 

used, as appropriate, in developing the future year emission projections. 

1.2 POLLUTANTS

The inventory includes annual emissions for carbon monoxide (CO), ammonia (NH3), 

oxides of nitrogen (NOx), particulate matter (PM), sulfur dioxide (SO2), and volatile 

organic compounds (VOC). The PM species in the inventory are categorized as: filterable 

and condensable particles with an aerodynamic diameter less than or equal to a nominal 10 

and 2.5 micrometers (i.e., PM10-PRI and PM25-PRI); filterable particles with an 

aerodynamic diameter less than or equal to a nominal 10 and 2.5 micrometers (i.e., PM10-

FIL and PM25-FIL); and condensable particles (PM-CON). Note that PM10-PRI equals 

the sum of PM10-FIL and PM-CON, and PM25-PRI equals the sum of PM25-FIL and 

PM-CON.

1.3 SOURCE CATEGORIES

Emission inventory data from six general categories are needed to support air quality 

modeling: electric generating units (EGUs), stationary nonEGU point-sources, stationary 

area-sources, on-road mobile sources, nonroad mobile sources, and biogenic/geogenic 

emissions. This report documents the development of emission projections for three of 

these sectors, as follows: 

NonEGU Point Sources are individual facilities and are further subdivided by 

stack, emission unit (“point”), and emission process (“segment”). Point source data 

include source-specific information on source location (e.g., latitude/longitude 

coordinates); stack parameters (stack diameter and height, exit gas temperature and 

velocity); type of process (source classification code {SCC}); and annual 

emissions. 

Stationary Area Sources include sources that in and of themselves are quite small, 

but in aggregate may contribute significant emissions. Examples include small 

industrial/commercial facilities, residential heating furnaces, VOCs volatizing from 
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house painting or consumer products, gasoline service stations, and agricultural 

fertilizer/pesticide application. 

Non-road Mobile Sources include internal combustion engines used to propel 

marine vessels, airplanes, and locomotives, or to operate equipment such as 

forklifts, lawn and garden equipment, portable generators, etc. For activities other 

than marine vessels, airplanes, and railroad locomotives (MAR), the inventory was 

developed using the most current version of USEPA’s NONROAD model as 

embedded in the National Mobile Inventory Model (NMIM). Since the 

NONROAD model does not include emissions from MAR sources, these emissions 

were estimated based on data and methodologies used in recent USEPA regulatory 

impact analyses. 

For these three sectors, emissions projections were compiled on an annual basis to 

represent conditions in 2017 and 2020. 

Emission projections for the three other sectors are being developed by the OTC under 

separate efforts: 

EGU Point Sources are units that generate electric power and sell most of that

power to the electrical grid. Emission projections for EGUs are being developed as 

part of an inter-RPO coordination effort under the direction of the Eastern Regional 

Technical Advisory Committee (ERTAC). 

On-road Mobile Sources are sources of air pollution from internal combustion 

engines used to propel cars, trucks, buses, and other vehicles on public roadways. 

Emission projections for on-road mobile sources are being developed under a 

separate effort by the OTC that will use the USEPA Motor Vehicle Emission 

Simulator (MOVES) model. 

Biogenic emissions are emitted by natural sources, such as plants, trees, and soils. 

The sharp scent of pine needles, for instance, is caused by monoterpenes, which are 

VOCs. The USEPA developed estimates of biogenic emissions from vegetation for 

natural areas, crops, and urban vegetation. The USEPA estimates take into account 

the geographic variations in vegetation land cover and species composition, as well 

as seasonal variations in leaf cover. Emission projections for biogenic sources will 

be developed under a separate effort by the OTC modeling team. 

Documentation of the emission projections for these three sectors will be available from 

the OTC. 
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1.4 DATA FORMATS

The annual mass emissions inventory files were prepared in the National Emissions 

Inventory (NEI) Output Format Version 3.0 (NOF 3.0). Spreadsheets summarizing 

emissions by county, sector, source classification code, and pollutant were also prepared. 

These annual emission inventories will be converted (through the emissions modeling 

process) from their original resolution (e.g., annual, county level) to input files for air 

quality models. These input files require emissions to be specified by model grid cell, 

hour, and model chemical species. The emission modelers in the MANE-VU+VA region 

are using the Sparse Matrix Operator Kernel Emissions (SMOKE) modeling system and 

data formats. Emission inventory files were prepared in SMOKE compatible format. 

1.5 INVENTORY VERSIONS

1.5.1 Version 1 Modeling Inventory

Work commenced in 2009 to assemble comprehensive 2007 and future year emission 

inventories to support air quality modeling. Using data available from state agencies and 

the USEPA, detailed point and area source emission inventories were compiled. The 

NONROAD model was used to estimate emissions for the nonroad equipment categories 

included in the model. State and USEPA data were used to assemble the inventory for 

nonroad sources not included in the NONROAD model (marine vessels, aircraft, and 

railroad locomotives, collectively referred to as the MAR sector). 

For the point, area, and MAR sectors, growth factors are applied to account for changes in 

population, fuel use and economic activity. Next, control factors are applied to account for 

future emission reductions from post-2007 control measures. The NONROAD model was 

used to project emissions for the nonroad equipment included in the model. The control 

scenario developed accounted for post-2007 emission reductions from promulgated 

federal, State, local, and site-specific control programs and proposed control programs that 

are reasonably anticipated to result in post-2007 emission reductions. A series of quality 

assurance steps are conducted to ensure the development of complete, accurate, and 

consistent emission inventories. The inventories are provided in two formats – SMOKE 

One-Record-Per-Line (ORL) format and a spreadsheet format suitable for SIP submittals. 

Finally, emission summary tables by state and pollutant were developed. 

Version 1 of the 2007 base year inventory and the emission projections for 

2013/2017/2020 were released for state and stakeholder review in late 2009 and early 

2010. 
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1.5.2 Version 2 Modeling Inventory

Following the review of Version 1, significant efforts were made to improve the inventory 

by using more state-specific data and correcting errors or omissions that were uncovered. 

These improvements were completed in February of 2011 and are referred to as Version 2 

of the MANE-VU+VA 2007 and 2013/2017/2020 inventories. The inventories were 

documented in two TSDs (MARAMA 2011a, MARAMA 2011b).

1.5.3 Version 3 Modeling Inventories with Existing and Potential Controls

Beginning in the fall of 2011, MARAMA sponsored development of Version 3 of the 2007 

base year modeling inventory to incorporate new paved road emission estimates, revised 

modeling of nonroad and onroad sources, and other state-specific changes

(MARAMA2012). 

This report documents the development of Version 3 of the future year inventories for the 

area source, nonEGU, and nonroad sectors. The future year modeling inventories for 

EGU) are currently being developed under a separate effort lead by ERTAC. The future 

year modeling inventories for onroad sources are currently being developed by 

NESCAUM, MARAMA or individual states.

In Version 3, the state Air Directors issued guidance on the future year emission control 

scenarios to be developed, as follows: 

“A special meeting of the Air Directors was convened to discuss the controlled 

inventory. During that call many Air Directors indicated that they would not be 

able to clearly identify which of the control measures their states would adopt 

because of the uncertainty surrounding the ozone standard. Therefore, all states, 

except Virginia, requested that the contractor be instructed to calculate the effect of 

all measures being fully adopted by both 2017 and 2020. This will allow modelers 

to assess the potential effect of the measures if they were fully implemented on air 

quality. We can also then test the assumptions that we have been making about the 

cumulative percent reduction from the measures.”

Thus, these TSD discusses two future control scenarios: an “existing controls” scenario 

scenario intended to include all 2017/2020 control measaures included in an individual 

state’s regulations or SIP, and a "what if" scenario that assumes that all states adopt 

certain new control measures by 2017. 
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1.6 REPORT ORGANIZATION

Section 2 describes how point source emission units were classified into the EGU or 

nonEGU point source categories. Section 3 discusses the growth projection factors 

assembled for area and nonEGU point sources. Sections 4 and 5 describe the control 

factors used for area and nonEGU point sources, respectively. Section 6 describes the 

NONROAD model runs made for the future years. Section 7 documents how emissions 

for marine vessels, aircraft, and railroad equipment were projected. Section 8 provides

state level emission pollutant summaries for area, nonEGU point, NONROAD, and MAR 

sectors. Section 9 documents the creation of SMOKE inventory modeling input files. 

Section 10 identifies the file names for final deliverable products. References for the TSD 

are provided in Section 11. 
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2.0 IDENTIFICATION OF EGU AND NONEGU POINT SOURCES

Only the emissions from point sources classified as nonEGUs are being projected using the 

methods and data contained in this report. Emissions from EGU point sources are being 

developed by ERTAC. 

States were asked to classify units in the 2007 MANE-VU+VA emissions inventory as 

either EGU or nonEGU. Most, but not all, of the units that are required to report hourly 

emissions to USEPA’s Clean Air Markets Division (CAMD) are classified as EGUs. 

CAMD implements USEPA’s rule found in Volume 40 Part 75 of the Code of Federal 

Regulations (CFR), which requires an hourly accounting of emissions from each affected 

unit - i.e., sources participating in an emissions cap and trade program under the Acid 

Rain Control Program, the NOx Budget Trading Program, or the Clean Air Interstate Rule. 

For the ERTAC projection methodology, the following guidance was provided to states to 

classify a unit as an EGU if it meets the following criteria:

An EGU sells most of the power generated to the electrical grid; 

An EGU burns mostly commercial fuel. Commercial fuel in this case means 

natural gas, oil, and coal. Wood is not considered a commercial fuel because some 

states identify wood as renewable. Therefore, to avoid double counting, units that 

burn wood and other renewable sources (depending on each state's own definition) 

should not be considered as an EGU (unless it is already in the CAMD database).

The following are units were not considered as EGU for emission projections: (1) a unit 

that generates power for a facility but occasionally sells to the grid; (2) emergency 

generators; or (3) distributed generation units.

States were provided with a list of units that report to CAMD (USEPA 2009a) and a list of 

units with an electric generating unit SCC (1-01-xxx-xx or 2-01-xxx-xx). States identified 

which units should be classified as EGUs and which should be classified as nonEGUs. 

Appendix A identifies the units that report emissions to CAMD and whether they are 

classified as EGUs or nonEGUs for emission projection purposes. A few states also 

identified units with SCCs beginning with 1-01 or 2-01 that do not report to CAMD but 

which should be classified as EGUs; however, for emission projection purposes these units 

will be processed using the nonEGU projection methodology described in this report. 

Exhibits 2.1 to 2.7 summarize EGU and nonEGU emissions for 2007. For these exhibits, 

EGUs are defined as units that report emissions to CAMD and have been classified as 

EGUs by the states for emission projection purposes. 
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Exhibit 2.1 2007 EGU and NonEGU Point Source CO Emissions (tons per year)

State EGU NonEGU Total

CT 1,095 2,584 3,679 

DE 726 7,027 7,753 

DC 10 301 311 

ME 460 14,023 14,483 

MD 4,196 77,574 81,770 

MA 5,516 4,592 10,108 

NH 910 2,254 3,164 

NJ 3,640 6,932 10,572 

NY 13,480 52,877 66,357 

PA 20,900 80,540 101,440 

RI 602 1,051 1,653 

VT 1,444 702 2,146 

VA 7,273 63,080 70,353 

TOTAL 60,252 313,537 373,789 
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Exhibit 2.2 2007 EGU and NonEGU Point Source NH3 Emissions (tons per year)

State EGU NonEGU Total

CT 0 0 0 

DE 32 62 94 

DC 0 0 0 

ME 59 606 665 

MD 0 137 137 

MA 283 365 648 

NH 98 30 128 

NJ 708 210 918 

NY 1,354 1,063 2,417 

PA 309 2,070 2,379 

RI 58 16 74 

VT 0 0 0 

VA 212 1,618 1,830 

TOTAL 3,113 6,177 9,290 
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Exhibit 2.3 2007 EGU and NonEGU Point Source NOx Emissions (tons per year)

State EGU NonEGU Total

CT 3,760 6,301 10,061 

DE 10,507 5,121 15,628 

DC 55 734 789 

ME 696 17,050 17,746 

MD 51,418 23,472 74,890 

MA 10,755 12,873 23,628 

NH 4,754 2,687 7,441 

NJ 16,571 14,030 30,601 

NY 47,450 35,583 83,033 

PA 186,997 71,382 258,379 

RI 494 950 1,444 

VT 370 441 811 

VA 62,673 50,265 112,938 

TOTAL 396,500 240,889 637,389 
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Exhibit 2.4 2007 EGU and NonEGU Point Source PM10 Emissions (tons per year)

State EGU NonEGU Total

CT 705 645 1,350 

DE 2,268 1,197 3,465 

DC 13 46 59 

ME 148 4,748 4,896 

MD 13,611 5,711 19,322 

MA 2,575 3,029 5,604 

NH 784 1,141 1,925 

NJ 4,496 3,188 7,684 

NY 5,044 4,463 9,507 

PA 27,470 22,275 49,745 

RI 16 173 189 

VT 0 146 146 

VA 6,175 13,028 19,203 

TOTAL 63,305 59,790 123,095 
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Exhibit 2.5 2007 EGU and NonEGU Point Source PM2.5 Emissions (tons per year)

State EGU NonEGU Total

CT 669 573 1,242 

DE 2,024 1,083 3,107 

DC 10 43 53 

ME 125 3,727 3,852 

MD 11,805 3,877 15,682 

MA 2,292 2,572 4,864 

NH 602 1,061 1,663 

NJ 4,410 2,453 6,863 

NY 3,585 2,414 5,999 

PA 19,071 13,389 32,460 

RI 16 124 140 

VT 0 114 114 

VA 4,593 10,295 14,888 

TOTAL 49,202 41,725 90,927 
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Exhibit 2.6 2007 EGU and NonEGU Point Source SO2 Emissions (tons per year)

State EGU NonEGU Total

CT 4,786 3,185 7,971 

DE 34,882 8,206 43,088 

DC 141 471 612 

ME 1,677 15,571 17,248 

MD 274,207 31,176 305,383 

MA 54,172 9,057 63,229 

NH 42,524 2,734 45,258 

NJ 37,302 3,490 40,792 

NY 108,444 44,307 152,751 

PA 970,726 57,330 1,028,056 

RI 16 1,500 1,516 

VT 6 316 322 

VA 188,562 54,486 243,048 

TOTAL 1,717,445 231,829 1,949,274 
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Exhibit 2.7 2007 EGU and NonEGU Point Source VOC Emissions (tons per year)

State EGU NonEGU Total

CT 143 1,447 1,590 

DE 83 3,406 3,489 

DC 2 57 59 

ME 35 4,987 5,022 

MD 389 4,597 4,986 

MA 463 4,094 4,557 

NH 110 806 916 

NJ 420 10,620 11,040 

NY 1,119 9,772 10,891 

PA 770 28,195 28,965 

RI 49 921 970 

VT 22 373 395 

VA 600 35,018 35,618 

TOTAL 4,205 104,293 108,498 
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3.0 GROWTH PROJECTION FACTORS FOR NONEGUs AND AREA 

SOURCES

The area and nonEGU point source growth factors were developed using six sets of data:

The Annual Energy Outlook (AEO) fuel consumption forecasts;

County-level population projections;

State-level employment projections by NAICS code; 

County-level vehicle miles travelled (VMT) projections; 

USEPA projections for livestock and residential wood combustion; and 

Other state-specific emission projection data.

The priority for applying these growth factors was to first use the state-supplied projection 

data (if available). If state-supplied data were not provided, then the AEO projection 

factors were used for fuel consumption sources, and the population/employment/VMT data 

were used for other source categories. 

3.1 AEO FUEL USE PROJECTIONS

The AEO is published annually by the U.S. Energy Information Administration (EIA). It 

presents long-term projections of energy supply, demand, and prices through 2035, based 

on results from EIA’s National Energy Modeling System (NEMS). NEMS projects the 

production, imports, conversion, consumption, and prices of energy, subject to 

assumptions on macroeconomic and financial factors, world energy markets, resource 

availability and costs, behavioral and technological choice criteria, energy technology cost 

and performance characteristics, and demographics.

AEO provides regional fuel-use forecasts for various fuel types (e.g., coal, residual oil, 

distillate oil, natural gas) by end use sector (e.g., residential, commercial, industrial, 

transportation, and electric power). Energy use projections are reported at the Census 

division level. The census divisions grouped states as follows:

South Atlantic - DE, DC, MD, VA 

Middle Atlantic – NJ, NY, PA 

New England – CT, ME, MA, NH, RI, VT

Appendices B1, B2, and B3 contain the AEO2010 fuel use projections for each of these 

three regions. Appendices B4, B5, and B6 contain the AEO2011 fuel use projections

Version 2 of the MANE-VU+VA future year inventories was developed using AEO2010 

(EIA2010). After the release of Version 2, AEO2011 was published (EIA2011). 

MARAMA reviewed the updated fuel forecasts and compared the AEO2010 and 

AEO2011 projections. Appendix B7 documents MARAMA’s analysis. MARAMA 
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calculated the difference in projected fuel usage between AEO2010 and AEO2011 for the 

residential, commercial, industrial, transportation, and electric power sector for the 

distillate fuel oil, residual fuel oil, coal, natural gas, and renewable fuel types. MARAMA 

identified thresholds for what constitutes a major change as follows:

An increase or decrease of 1% or less is considered to be no change and did not 

warrant a change in the growth factors between Versions 2 and 3 of the inventory;

An increase or decrease of between 1% and 5% is considered to be a minor change, 

and states agreed that these differences between AEO2010 and AEO2011 did not 

warrant a change in the growth factors between Versions 2 and 3 of the inventory;

An increase or decrease above 5% is considered a major change, and warrants a 

change in the growth factors used in Version 3. 

MARAMA recommended that the AEO2010 projections be retained for all residential, 

commercial, and industrial sector fuel use, except for industrial natural gas usage, where 

the AEO2011 projections will be used for Version 3 of the future year modeling inventory. 

New Jersey elected to use the more recent growth factors from AEO2011 instead of the 

AEO2010 growth factors for all area source fossil fuel use categories. 

Exhibits 3.1 to 3.5 summarize the projected fuel use rates by source sector (residential, 

commercial, industrial, transportation) , AEO region, and fuel type for the years 2007 to 

2025. The unusual growth in commercial residual oil use in the South Atlantic region 

could not be explained; Maryland elected to use manufacturing employment instead of the 

AEO2010 growth factor for commercial residual oil combustion, while Virginia and the 

District chose to assume flat growth in this sector. 

3.2 POPULATION PROJECTIONS

States provided county-level 2007 populations and projections for future years. The 

historical and projection years varied from state-to-state, so values were interpolated, when 

necessary, to create population estimates for each year from 2007 to 2025. The population 

data were normalized to create growth factors from 2007 for each future year. For 

example, Delaware had a population of 861,087 in 2007 and the projected population in 

2017 is 953,204, then the growth factor for 2017 is 953,204 / 861,087 = 1.107. 

Population projections are provided in Appendix C. Exhibit 3.6 summarizes the 

population growth factors by state and AEO2010 region. Population is projected to grow 

in every state between 2007 and 2025. The population growth in the New England states 

varies significantly by state. Population growth in the South Atlantic states is projected to 

be much higher than in the New England and Mid-Atlantic states. 
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Exhibit 3.1 AEO2010 Growth Factors for Coal by AEO Region 2007 – 2025
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Exhibit 3.2 Growth Factors for Residual Oil by AEO Region 2007 – 2025
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Exhibit 3.3 AEO2010 Growth Factors for Distillate Oil by AEO Region 2007 – 2025
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Exhibit 3.4 Growth Factors for Natural Gas by AEO Region 2007 – 2025

AEO2010 for Residential/Commercial, AEO2011 for Industrial
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Exhibit 3.5 AEO2010 Growth Factors for Gasoline by AEO Region 2007 – 2025
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Exhibit 3.6 Population Growth Factors by AEO Region 2007 – 2025
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3.3 EMPLOYMENT PROJECTIONS 

Every two years, the federal Bureau of Labor Statistics produces long-term industry and 

occupation forecasts for ten future years and states are asked to do the same for their

respective economies. The most recent projections from state Department’s of Labor of 

for the period 2006 to 2016, most of which were published in 2008. These 10-year 

forecasts are updated every other year. The next set of state-specific projections will be for 

the period 2008 to 2018. Only the District of Columbia and Delaware were able to provide 

employment projections for 2008 to 2018; the 2008 to 2018 projections were not available 

for other states in time for use on this project. The employment projections are state-wide 

by 3-digit NAICS code. Employment projections are provided in Appendix D. Exhibit 3.7 

summarizes the manufacturing employment (NAICS sector 31-33) growth factors by state

and AEO2010 region. States in the Northeast / Mid-Atlantic region show a marked 

decrease in manufacturing employment from 2007 forward. 

3.4 VEHICLE MILES TRAVELED PROJECTIONS

States developed projections of vehicle miles traveled (VMT) for 2007, 2017 and 2020 

which were used as the growth factor for projecting emissions from re-entrained road dust 

from travel on paved roads (SCC 22-94-000-000). The 2007 and future year VMT are 

identical to those used in the MOVES modeling. Exhibit 3.8 shows the state level VMT 

growth between 2007 and 2020. Growth factors for years where VMT were not directly 

provided by states were estimated by a linear interpolation of available data. Countyspecific VMT projections are provided in Appendix E. 

3.5 NO GROWTH ASSIGNMENT FOR CERTAIN AREA SOURCE 

CATEGORIES 

For several area source categories, it seems reasonable that emissions would not change 

from the 2007 values. No growth was applied to the 2007 emissions for the area source 

categories shown in Exhibit 3.9. 
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Exhibit 3.7. Manufacturing Employment Growth Factors by AEO Region 2007 - 2025
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Exhibit 3.8 State VMT Growth Factors 2007 – 2020
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Exhibit 3.9 Area Source Categories with No Growth Assignment

SCC SCC Description

2296000000 Unpaved Roads /All Unpaved Roads /Total: Fugitives

2401008000 Surface Coating /Traffic Markings /Total: All Solvent Types

2461020000 Misc Non-industrial: Commercial /Asphalt Application: All Processes /Total: All

2461021000 Misc Non-industrial: Commercial /Cutback Asphalt /Total: All Solvent Types

2461022000 Misc Non-industrial: Commercial /Emulsified Asphalt /Total: All Solvent Types

2461023000 Misc Non-industrial: Commercial /Asphalt Roofing /Total: All Solvent Types

2601000000 On-site Incineration /All Categories /Total

2601010000 On-site Incineration /Industrial /Total

2601010000 On-site Incineration /Industrial /Total

2601020000 On-site Incineration /Commercial/Institutional /Total

2601020000 On-site Incineration /Commercial/Institutional /Total

2601030000 On-site Incineration /Residential /Total

2610000100 Open Burning /All Categories /Yard Waste - Leaf Species Unspecified

2610000400 Open Burning /All Categories /Yard Waste - Brush Species Unspecified

2610000500 Open Burning /All Categories /Land Clearing Debris (use 28-10-005-000 for Loggin

2610030000 Open Burning /Residential /Household Waste (use 26-10-000-xxx for Yard Wastes)

2610040400 Open Burning /Municipal (from residences, parks,other for central burn) 

2660000000 Leaking Underground Storage Tanks /Leaking Underground Storage Tanks /Total: All

2680001000 Composting /100% Biosolids (e.g., sewage sludge, manure, mixtures of these matls

2680002000 Composting /Mixed Waste (e.g., a 50:50 mixture of biosolids and green wastes)

2806010000 Domestic Animals Waste Emissions /Cats /Total

2806015000 Domestic Animals Waste Emissions /Dogs /Total

2807020001 Wild Animals Waste Emissions /Bears /Black Bears

2807020002 Wild Animals Waste Emissions /Bears /Grizzly Bears

2807025000 Wild Animals Waste Emissions /Elk /Total

2807030000 Wild Animals Waste Emissions /Deer /Total

2807040000 Wild Animals Waste Emissions /Birds /Total

2810001000 Forest Wildfires - Wildfires – Unspecified

2810005000 Managed Burning, Slash (Logging Debris) /Unspecified Burn Method

2810010000 Human Perspiration and Respiration /Total

2810014000 Prescribed Burning /Generic - Unspecified land cover, ownership, class/purpose

2810015000 Prescribed Forest Burning /Unspecified

2810020000 Prescribed Rangeland Burning /Unspecified

2810030000 Structure Fires /Unspecified

2810035000 Firefighting Training /Total

2810050000 Motor Vehicle Fires /Unspecified

2810060200 Cremation /Animals

2810090000 Open Fire /Not categorized

2820010000 Cooling Towers /Process Cooling Towers /Total

2830000000 Catastrophic/Accidental Releases /All Catastrophic/Accidental Releases /Total

2830010000 Catastrophic/Accidental Releases /Transportation Accidents /Total
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3.6 EPA 2020 PROJECTIONS FOR RESIDENTIAL WOOD AND 

LIVESTOCK 

EPA’s Office of Air Quality Planning and Standards (OAQPS) made available its 2020 

emissions projections associated with its 2005-based v4 modeling platform. MARAMA 

used the OAQPS emission projection parameters for two area source sectors –livestock 

and residential wood combustion. OAQPS’s methodology and data sources are 

summarized below (USEPA 2008a). 

OAQPS projected residential wood combustion emissions are based on the expected 

increase in the number of low-emitting wood stoves and the corresponding decrease in 

other types of wood stoves. As newer, cleaner woodstoves replace older, more polluting 

stoves, there will be an overall reduction of emissions from this category. The approach 

used by OAQPS was developed as part of a modeling exercise to estimate the expected 

benefits of the woodstove changeout program. This methodology uses a combination of 

growth and control factors and is based on activity not pollutant. The growth and control 

are accounted for in a single factor for each residential wood SCC (certain SCCs represent 

controlled equipment, while other SCCs represent uncontrolled equipment). Control

factors are indirectly incorporated based on which stove is used. The specific assumptions 

OAQPS made were:

Fireplaces, SCC=2104008001: increase 1%/year; 

Old woodstoves, SCC=2104008002, 2104008010, 2104008051: decrease 2%/year;

New woodstoves, SCC=2104008003, 2104008004, 2104008030, 2104008050,

2104008052 or 2104008053: increase 2%/year.

For the general woodstoves and fireplaces category (SCC 2104008000) OAQPS computed 

a weighted average distribution based on 19.4% fireplaces, 71.6% old woodstoves, 9.1% 

new woodstoves using 2002 Platform emissions for PM2.5. These fractions are based on 

the fraction of emissions from these processes in states that did not have the “general 

woodstoves and fireplaces” SCC in the 2002 NEI. This approach results in an overall 

decrease of 1.056% per year for this source category. Appendix F contains the residential 

wood projection data from OAQPS. 

OAQPS based growth in emissions from livestock on projections of growth in animal 

population. Except for dairy cows and turkeys, the animal projection factors are derived 

from national-level animal population projections from the U.S. Department of Agriculture 

(USDA) and the Food and Agriculture Policy and Research Institute (FAPRI). 
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For dairy cows and turkeys OAQPS assumed that there would be no growth in emissions. 

This assumption was based on an analysis of historical trends in the number of such 

animals compared to production rates. While productions rates have increased, the number 

of animals has declined. In particular, the dairy cow population is projected to decrease in 

the future as it has for the past few decades; however, milk production is expected to 

increase over the same period. Thus, OAQPS does not believe that production forecasts 

provide representative estimates of the future number of cows and turkeys. Therefore, 

OAQPS did not use these forecasts for estimating future-year emissions from these 

animals. Note that the ammonia emissions from dairies are related to both animal 

population and nitrogen excretion. Appendix G contains the livestock projection data from 

OAQPS. 

3.7 SCC, SIC, NAICS AND GROWTH PARAMETER CROSSWALK 

Since the employment projections were based on 3-digit NAICS code, it was necessary to 

map NAICS codes to SCCs and SIC codes that were used by states. Employment 

projections at the more specific 4-digit or 6-digit NAICS codes were not available. 

The first step for developing a comprehensive crosswalk between the different source 

classification codes (SCC, SIC, and NAICS codes) and emission activity growth indicators 

was to compile a complete list of the NAICS codes in the 2007 point source inventory. 

Some states use the SIC code while other use the NAICS code. Still other states use both 

the SIC and NAICS codes. When the NAICS code was not available SIC codes were 

converted to NAICS codes. The 6-digit NAICS code was truncated to a 3-digit code, 

which represents major industry subsectors of the economy. A U.S. Census Bureau 

document was used to perform this conversion (CENSUS 2000). 

The next step was to review parameters that could be used as the emission activity growth 

indicator for each SCC or NAICS. We initially relied on two USEPA crosswalks (USEPA 

2004a, USEPA 2004b) to match area and nonEGU point source SCCs to AEO2010 

categories, employment NAICS codes, and population. The sector specific spreadsheets

identify the growth parameter used to project emissions for each SCC.

3.8 FINAL GROWTH FACTORS FOR NONEGU / AREA SOURCES

The previous section described the growth factors initially recommended to project future 

year emissions inventories for area and non-EGU sources. Draft growth and control 

factors, and a draft technical support document, were circulated for review by MARAMA 

and state agencies. During the review, it was noted that several emissions categories show 
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negative growth into the future, particularly categories related to fossil fuel combustion 

and manufacturing employment. 

Many of the growth factors used to project emissions for area and non-EGU sources were 

based on the AEO2010 fuel consumption forecasts and state-level employment projections. 

The AEO2010 forecasts show declining trends for many fuel consumption sectors, 

especially industrial, residential, and commercial distillate fuel oil use. Similarly, the 

employment projections show declines in the predicted number of employees for many 

sectors of the economy. This is particularly true for the manufacturing sector, which is of 

interest because this sector is often associated with higher emissions than those for other 

sectors. By contrast, the employment projections show increasing trends in retail and 

service-related sectors. However, these sectors are not typically associated with 

significant emissions.

Predicted declines in fuel use and employment resulted in growth factors less than unity 

(i.e., represent negative growth) for many area and non-EGU point source categories. 

Consequently, for some categories, emissions are lower for the projected future years than 

for the base year, even before the application of control assumptions (i.e. the future 

"growth only" emissions are lower than the base year emissions). The MARAMA 

emissions inventory workgroup met on several occasions via conference calls and email 

exchanges to discuss whether the negative growth projections were realistic, and what 

additional assumptions should be made. A topic of particular concern is negative growth 

for non-EGU point sources versus the treatment of Emissions Reduction Credits (ERCs) in 

the future year inventories (see Section 3.9 for a discussion of how ERCs were handled). 

One conclusion the workgroup reached is that growth methods and assumptions for area 

sources and non-EGUs should be as consistent as possible with those that are being used 

by the Eastern Regional Technical Advisory Committee (ERTAC) for the projection of 

emissions from EGUs. ERTAC is using AEO2010 as a starting point for estimating 

projected future year emissions, and their preliminary analysis shows some indications of 

negative growth. But their analysis is still on-going, and it is too early in the process to 

draw firm conclusions or make solid recommendations at this time regarding their work 

and its relationship to the area and non-EGU projections.

A few states cited the importance of the negative growth issue for non-EGUs and how it 

relates to their ERC programs which are critical to new businesses being able to locate in 

those states. Because businesses could apply for and sell ERCs at the level of the base 

year inventory, it would not be realistic to show negative growth for non-EGU point 

sources. During an economic downturn, a facility could shut down and sell its ERCs, 
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making the effective level of future year emissions equal to (i.e. no lower than) the base 

year. Therefore, a recommended conservative approach for addressing negative growth for 

non-EGU point sources is to set a minimum growth rate of 1 (no growth).

During the July 23, 2010 conference call held to discuss the negative growth issue, state 

and agency representatives on the call were polled as to whether or not they felt that the 

current set of proposed growth factors - including the negative growth factors - were 

realistic for their state or district. In reply, some representatives mentioned that they have 

observed historic state-specific data that supports the trends displayed by the proposed 

growth factors. Other representatives mentioned that they feel comfortable with the 

growth factors and don't have a technical basis to change them or suggest others. 

As a result of these discussions, each state provided guidance on how to handle projections 

when negative growth is indicated. Exhibit 3.10 shows the state recommendations for 

nonEGU point source, and Exhibit 3.11 shows the state recommendations for area sources. 

The sector specific spreadsheets identify the growth parameter used to project emissions 

for each SCC.

3.9 EMISSION REDUCTION CREDITS

Mulitple states (Connecticut, Maryland, Massachesetts, New Hampshire and New Jersey) 

added county level records account for account emission reduction credits (ERCs) issued 

to stationary sources pursuant to state regulations. States provided ERCs on a county-bycounty basis. Fictitious facilities with an identifier of “OFFSET99999” were created for 

each county using SCC 23-99-000-000 (miscellaneous industrial processes: not elsewhere 

classified). Stack data were developed that assumed that emissions were released at the 

county centroid with an assumed release height of 10 feet. For the 2017 and 2020 

inventories, ERC emissions were set to the amount of banked emissions available in 2007. 

Delaware included the banked credits at the specific locations that they were generated. 

Virginia does not have a formal banking and trading program. Virginia used growth rates 

of 1 for those SCCs in the point source emissions inventory that showed a negative growth. 

In addition, for units that have or are projected to have shut down, Virginia preserved the 

2007 emissions in the inventory to account for potential use as offsets or credits.

Other states did not provide any additional information on how to account for ERCs.
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Exhibit 3.10 State Recommendations to Address Negative Growth 

for the NonEGU Point Source Sector

State AEO Growth Factors Employment Growth Factors

CT Use no growth (growth factor=1) when AEO 

growth is negative; otherwise use AEO2010 if 

positive growth

Use state DOL employment projections by 3-

digit NAICS 

DE Use AEO2010 growth rates For 2013, use state DOL employment 

projections by 3-digit NAICS; 

For 2017 and 2020, use no growth (growth 

factor=1) when employment growth is 

negative; otherwise use employment if 

positive growth

DC Use AEO2010 growth rates Use 2008-2018 employment projections; use 

no growth (growth factor=1) when 

employment growth is negative; otherwise use 

employment if positive growth

ME Use AEO2010 growth rates Use state DOL employment projections by 3-

digit NAICS 

MD Do not use AEO growth factors 

Use MD DOL employment projections for 

industrial and commercial fuel use SCCs, 

unless employment growth rate is negative, in 

which case use no growth (growth factor=1)

Use updated state DOL employment 

projections by 3-digit NAICS; 

For DoD facilities, account for impacts of Base 

Realignment and Closure;

For source that have closed, account for 

emission reduction credits

MA Use AEO2010 growth rates Use state DOL employment projections by 3-

digit NAICS 

NH Use AEO2010 growth rates Use state DOL employment projections by 3-

digit NAICS 

NJ New Jersey submitted state specific growth 

factors. Used either state specific growth 

factors, no growth (growth factor=1) when 

state AEO growth is negative or AEO if 

positive growth

NJ submitted state specific growth factors. 

Used either state specific factors, no growth 

(growth factor=1) when state DOL 

employment growth is negative or

employment if positive growth

NY Use no growth (growth factor=1) when AEO 

growth is negative; otherwise use AEO2010 if 

positive growth

Use no growth (growth factor=1) when 

employment growth is negative; otherwise use 

employment if positive growth

PA Use no growth (growth factor=1) when AEO 

growth is negative; otherwise use AEO2010 if 

positive growth

Use no growth (growth factor=1) when 

employment growth is negative; otherwise use 

employment if positive growth

RI Use AEO2010 growth rates Use state DOL employment projections by 3-

digit NAICS 

VT Use AEO2010 growth rates Use state DOL employment projections by 3-

digit NAICS 

VA Use no growth (growth factor=1) when AEO 

growth is negative; otherwise use AEO2010 if 

positive growth

Use no growth (growth factor=1) when 

employment growth is negative; otherwise use 

employment if positive growth
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 32

Exhibit 3.11 State Recommendations to Address Negative Growth 

and Other Growth Factors for the Area Source Sector

State AEO Growth Factors Employment 

Growth Factors

Population 

Growth Factors

CT Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS 

Use county-level 

population projections

DE Use AEO2010 growth rates; no 

growth for suspect AEO2010 

projection for commercial / 

institutional residual oil

For 2013, use state DOL 

employment projections by 3-digit 

NAICS; For 2017 and 2020, use 

no growth (growth factor=1) when 

employment growth is negative; 

otherwise use employment if 

positive growth

Use county-level 

population projections

DC Use AEO2010 growth rates; no 

growth for suspect AEO2010 

projection for commercial / 

institutional residual oil

Use DOL employment growth for 

NAICS 722 for food and kindred 

product SCC; otherwise use 

orginial estimates

For dry cleaning, use 

employment growth for 

NAICS 812 instead of 

population

ME Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

MD Not using AEO2010; used 

employment for commercial & 

institurional fuel; used housing 

units for residential fuel

Provided updated employment 

projections; changed xwalk 

between NAICS code and SCC 

for selected source categories

Provided updated 

population projections 

by county

MA Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

NH Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

NJ NJ submitted state specific 

growth factors. For fuel 

combustion categories only, 

used AEO2011 growth rates 

except for residual oil (use no 

growth)

NJ submitted state specific 

growth factors.

NJ submitted state 

specific growth factors 

and provided 

population projections 

by county

NY Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

PA Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

RI Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

VT Use AEO2010 growth rates Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections

VA Use AEO2010 growth rates; no 

growth for suspect AEO2010 

projection for commercial / 

institutional residual oil

Use state DOL employment 

projections by 3-digit NAICS

Use county-level 

population projections
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 33

4.0 AREA SOURCE CONTROL FACTORS 

Control factors were developed to estimate post-2007 emission reductions resulting from 

on-the-books regulations and proposed regulations/actions. Control factors were 

developed for the following national and regional measures:

Federal Rules Affecting Area Sources

Federal MACT Rules 

Control Technique Guidelines

OTC Model Rules 

These control programs are discussed in the following subsections. The control factors 

used for area sources are provided in V3_3 Area_07_17_20.xlsx

4.1 FEDERAL RULES AFFECTING AREA SOURCES 

USEPA made available its 2020 emissions projections associated with its 2005-based v4 

modeling platform (USEPA 2010b). USEPA accounted for control strategies for four area 

source categories. These categories, and their treatment in the emission projection 

inventories, are described below: 

Woodstoves - As noted in Section 3.6, USEPA developed projection factors to 

account for the replacement of retired woodstoves that emit at pre-new source 

performance standard (NSPS) levels with lower-emitting woodstoves. We used

USEPA’s latest methodology which uses a combination growth and control factor 

and is based on activity and not pollutant. The growth and control are accounted 

for in a single factor for specific SCCs that account for the turnover from pre-NSPS 

to post-NSPS woodstove. 

Landfills: USEPA estimated a 75% reduction in VOC emissions from municipal 

solid waste landfills. However, since the compliance date for this standard was 

January 2004, no post-2007 reductions were applied to the MANE-VU+VA 

projection inventory since the emission reductions from this MACT standard 

should be reflected in the 2007 inventory and not as an additional post-2007 credit. 

Vehicle Refueling (Stage II): VOC emissions from the gasoline Stage II (vehicle 

refueling) are affected by two emission control programs. Many areas in the region 

have Stage II vapor recovery rules that were in effect prior to 2007 that require the 

capture of gasoline vapors generated when a motor vehicle fuel tank is filled at a 

gasoline station. The vapors are transferred from the fuel tank in the vehicle to the 

storage tank at the station as the vehicle fuel tank is filled. Beginning with the 

1998 model year, USEPA established a phase-in schedule requiring vehicles to 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 34

incorporate on-board equipment to capture the gasoline vapor emissions from 

refueling. These controls, referred to as on-board refueling vapor recovery 

(ORVR), have been required on the vast majority of gasoline powered motor 

vehicles since the 2006 model year. VOC emissions for 2020 from vehicle 

refueling were estimated by NESCAUM using the MOVES model 

(NESCAUM2011). VOC emissions for 2017 were estimated by interpolating 

between the MOVES 2007 and 2020 results. Appendix H contains the VOC control 

efficiencies by county used in the MOVES modeling for displacement losses and 

for spillage losses.

Portable fuel containers (PFCs): VOC emissions from PFCs will be reduced due to 

the federal regulation controlling air toxic emissions from mobile sources 

promulgated in 2007. Most northeastern and mid-Atlantic states had already 

adopted similar regulations prior to the federal rule. Refer to the OTC 2006 model 

rules subsection later in this document (Section 4.4.6) for a discussion of the 

approach for accounting for VOC emission reductions from PFCs.

4.2 FEDERAL MACT RULES

USEPA developed guidance for estimating VOC and NOx emission changes from MACT 

Rules (USEPA 2007b). We reviewed the guidance to identify possible area source 

controls associated with the federal maximum achievable control technology (MACT) 

standards for controlling hazardous air pollutants (HAPs). Although designed to reduce 

HAPs, many of the MACT standards also provide a reduction in criteria air pollutants. 

The USEPA document provides an estimate of the percent reduction in VOC and NOx 

from each standard, and the compliance date for the standard. This information was used 

to determine whether the MACT standard provided post-2007 emission reductions. For 

example, if a compliance period of a MACT standard was 2007 or earlier, then we 

assumed that the emission reductions from the MACT standard should be reflected in the 

baseline year and not as an additional post- 2007 credit. 

Only one area source category was listed in the USEPA guidance document - municipal 

solid waste landfills. Since the compliance date for this standard was January 2004, no 

post-2007 reductions were applied since the emission reductions from the MACT standard 

should be reflected in the 2007 inventory and not as an additional post-2007 credit. 

USEPA has or will soon develop MACT standards for about 70 area source categories. 

We reviewed USEPA’s 2020 emissions projections described in the previous section and 

found that USEPA did not include emission reductions from recent area source MACT 

standards. We conducted a review of USEPA’s air toxic website and found that USEPA 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 35

determined that many area source MACT standards would result in nationwide reductions 

in criteria air pollutants in addition to the reductions in HAP emissions. However, many 

states in the MANE-VU+VA region already have emission standards for many categories 

that are as stringent as the Federal area source MACT standards. For example, many states 

in the MANE-VU+VA region already have requirements as stringent as the Gasoline 

Distribution MACT and GACT (generally achievable control technology) standards, and 

little additional VOC reductions would be realized in the region. Given the resources 

allocated to this project, it was beyond the scope to conduct an analysis of the area source 

MACT requirements and state-by-state emission regulations to determine whether there 

would be emission reductions resulting from the area source MACT standards. 

The only exception to the above discussion of area source MACT standards pertains to the 

recently promulgated rules for reciprocating internal combustion engines (RICE). USEPA 

made available an estimate of the percent reduction in emissions attributable to the RICE 

MACT rule in 2012 and 2014 (USEPA 2010c). The USEPA 2014 estimates shown in 

Exhibit 4.1 were used for the MANE-VU+VA 2017 and 2020 inventories. 

4.3 RECENT CONTROL TECHNIQUE GUIDELINES

Control Techniques Guidelines (CTGs) are documents issued by USEPA to provide states 

with recommendation on VOC controls from a specific product or source category in an 

ozone nonattainment area. USEPA issued new or updated CTGs for 13 VOC categories in 

3 groups during 2006, 2007 and 2008 (USEPA 2008b). The categories are:

2006 CTGs

 Flat Wood Paneling Coatings

 Industrial Cleaning Solvents

 Flexible Package, Lithographic and Letterpress Printing 

2007 CTGs

 Large Appliance Surface Coating

 Metal Furniture Coatings

 Paper Film and Foil Coatings

2008 CTGs

 Miscellaneous Metal Parts Coatings

 Plastic Parts Coatings 

 Auto and Light-duty Truck Assembly Coatings

 Fiberglass Boat Manufacturing

 Miscellaneous Industrial Adhesives

States indicated that they expected very littleadditional reductions from these new or 

amended CTGs. Therefore, no emission reductions were included in the inventory.
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 36

Exhibit 4.1 USEPA Estimated Percent Reductions for RICE MACT Standard by 2014

SCC CO NOx PM10 PM2.5 VOC SCC Description

2101004000 12.42 7.57 7.57 30.85 Electric Utility;Distillate Oil;Total: Boilers and IC Engines

2101004002 16.9 11.81 11.81 33.78 Electric Utility;Distillate Oil;All IC Engine Types

2101006000 11.07 7.97 16.71 Electric Utility;Natural Gas;Total: Boilers and IC Engines

2101006002 15.47 9.87 21.24 Electric Utility;Natural Gas;All IC Engine Types

2102004000 12.42 7.57 7.57 30.85 Industrial;Distillate Oil;Total: Boilers and IC Engines

2102006000 11.07 7.97 16.71 Industrial;Natural Gas;Total: Boilers and IC Engines

2102006002 15.47 9.87 21.24 Industrial;Natural Gas;All IC Engine Types

2103004000 12.42 7.57 7.57 30.85 Commercial/Institutional;Distillate Oil;Total: Boilers and IC Engines

2103006000 11.07 7.97 16.71 Commercial/Institutional;Natural Gas;Total: Boilers and IC Engines

2199004000 12.42 7.57 7.57 30.85 Area Source Fuel Combustion;Distillate Oil;Total: Boilers and IC Engines

2199004002 16.9 11.81 11.81 33.78 Area Source Fuel Combustion;Distillate Oil;All IC Engine Types

2199006000 11.07 7.97 16.71 Area Source Fuel Combustion;Natural Gas;Total: Boilers and IC Engines

2310000000 19.86 12.53 23.87 Oil and Gas Production: All Processes;Total: All Processes

2310000220 19.86 12.53 23.87 Oil and Gas Exploration/Production; Drill Rigs

2310000440 19.86 12.53 23.87 Oil and Gas Exploration/Production; Saltwater Disposal Engines

2310001000 19.86 12.53 23.87 Oil and Gas Production: SIC 13; On-shore;Total: All Processes

2310002000 19.86 12.53 23.87 Oil and Gas Production: SIC 13; Off-shore;Total: All Processes

2310020000 19.86 12.53 23.87 Oil and Gas Production: SIC 13;Natural Gas;Total: All Processes

2310020600 19.86 12.53 23.87 Oil and Gas Exploration and Production;Natural Gas;Compressor 

Engines

2310023000 19.86 12.53 23.87 Oil and Gas Exploration and Production;Natural Gas;Cbm Gas Well -

Dewatering Pump Engines
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 37

4.4 OTC MODEL RULES FOR AREA SOURCES 

The Ozone Transport Commission (OTC) developed model rules for member states in 

2001 for several area source categories: consumer products, architectural and industrial 

maintenance (AIM) coatings, portable fuel containers (PFCs), mobile equipment repair and 

refinishing, solvent cleaning, and industrial boilers. In 2006 the OTC introduced model 

rules for two additional area source categories (adhesives/sealants and asphalt paving), 

more stringent requirements for consumer products, portable fuel containers, and industrial 

boilers. In 2009/2010, the OTC recommended additional controls for autobody refinishing 

operations, consumer products, AIM coatings, and small new natural gas-fired boilers. In 

addition, MANE-VU states committed to the use of low sulfur home heating, distillate and 

residual fuel oil. Exhibit 4-2 briefly describes the OTC and MANE-VU control measures 

affecting area sources that have been recommended for adoption by the states in the OTR. 

Individual states are in various stages of adopting the OTC recommendations into their 

rules and SIPs. OTC’s status reports were reviewed to identify each state’s adoption status 

(OTC 2009, OTC 2011a, OTC2011b). To obtain further clarification, states were polled to 

determine whether they have adopted a rule that would achieve reductions equivalent to 

the OTC model rule or recommendation and whether credit for each rule was already 

accounted for in the 2007 inventory. 

To evaluate the impact of the rules currently in place as well as the potential adoption of all 

control measures by all states except Virginia, the state Air Directors specified that two 

emission control scenarios should be developed as follows: 

Existing Controls - this scenario represents the best estimates for the future year,

accounting for all in-place controls that are fully adopted into federal or individual 

state regulations or SIPs. 

Potential New OTC Controls – this scenario accounts for all of the emission 

reductions from the existing control scenario plus new state or regional measures 

that are under consideration by the OTC or individual states. This is a “what if”

scenario that assumes that all states in the MANE-VU+VA region except Virginia 

will adopt all new OTC control measures under consideration by 2017. It does 

not include any potential new federal control measures that are under consideration. 

The following paragraphs describe the control factors applied for each control measure by 

state and future year. 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 38

Exhibit 4.2 Summary of Area Source OTC Control Measures

Source Category Pollutants Description

Consumer Products VOC OTC 2001. Specified VOC content limits for certain 

categories that are more stringent than Federal limits

OTC 2006. Included additional products and more 

restrictive VOC limits for certain products

OTC 2009/2010. Specified more restrictive VOC limits 

for 14 existing consumer product categories and three 

new categories

Architectural and Industrial 

Maintenance Coatings

VOC OTC 2001. Specified VOC content limits for certain 

categories that are more stringent than Federal limits

OTC 2009/2010. Eliminated 15 categories (replaced 

by new categories or deemed unnecessary), added 

10 new categories, and specified stricter VOC limits 

for 19 categories

Portable Fuel Containers VOC OTC 2001. Provided container design specifications 

to reduce emissions from spillage and evaporation

OTC 2006. Revised and clarified design specifications

and added kerosene containers and utility jugs.

Mobile Equipment Repair 

and Refinishing

VOC OTC 2001. Required use of high efficiency coating 

application equipment, spray gun cleaning equipment 

that minimizes solvent loss, and enclosed spray gun 

cleaning.

OTC 2009/2010. Limited the VOC content of coatings

more stringent than the Federal limits and the VOC 

content of cleaning solvents

Solvent Cleaning VOC OTC 2001. Established hardware and operating 

requirements for specified vapor cleaning machines, 

and solvent volatility limits and operating practices for 

cold cleaners 

Adhesives and Sealants VOC OTC 2006. Provided VOC content limits and other 

restrictions on adhesives used primarily by 

commercial and industrial users. 

Asphalt Paving VOC OTC 2006. Suggested VOC content limits for 

emulsified and cutback asphalts use for road paving

NOx ICI Boiler Controls NOx OTC 2001. Recommended NOx emission rate limits 

for industrial boilers greater than 5 mmBtu/hour

OTC 2006. Recommended lower NOx emission rate 

limits for industrial, commercial, and institutional 

boilers

OTC 2010. Recommended national NOx controls for 

ICI boilers

Small Natural Gas-Fired 

Boilers

NOx OTC 2009/2010. Recommended NOx emission rate 

limits for new boilers less than 5 mmBtu/hr

Low Sulfur Fuel Oil SO2 MANE-VU 2006. Recommends sulfur content limits 

for home heating oil, distillate oil, and residual oil
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 39

4.4.1 OTC Model Rule for Adhesives/Sealants

VOC emissions in this category are primarily from commercial applications such as floor 

covering installation (carpet and wood flooring), roof installations and repair and 

upholstery shops. The category also includes industrial applications such as wood product 

manufacturers. Adhesives in small containers are not included in this category but are 

regulated under the consumer products regulations. 

The OTC 2006 model rule for industrial adhesives and sealants is based on the reasonably 

available control technology (RACT) and best available retrofit control technology 

(BARCT) determination by the California Air Resources Board (CARB) developed in 

1998. The OTC model rule regulates the application of adhesives, sealants, adhesive 

primers and sealant primers by providing options for appliers to either use a product with a 

VOC content equal to or less than a specified limit or to use add-on controls to achieve an 

equivalent reduction. The emission reduction benefit estimation methodology for area 

sources is based on information developed and used by CARB as discussed in their 1998 

RACT report. A 64.4 percent reduction in VOC emissions was estimated for SCC 24-40-

020-000. 

States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC recommendations and whether the estimated 

reduction in VOC emissions should be applied in 2017 and 2020. State-by-state

recommendations are shown in Exhibit 4.3. 

It should be noted that not all states account for emissions from this category in a separate 

area source inventory. Some states, based on information received from USEPA, excluded 

this category because the emissions to some extent may be accounted for in the area source 

commercial and consumer products category or in the nonEGU point source inventory.

Exhibit 4.3 State Recommendations for OTC Industrial Adhesives/Sealants Rule

State

Is Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT No 64.4 0 64.4 0

DE No 64.4 0 64.4 0

DC No n/a n/a n/a n/a

ME No 64.4 0 64.4 0

MD No 64.4 0 64.4 0
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 40

State

Is Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

MA No 64.4 0 64.4 0

NH No n/a n/a n/a n/a

NJ No 64.4 0 64.4 0

NY No 64.4 0 64.4 0

PA No 64.4 0 64.4 0

RI No n/a n/a n/a n/a

VT n/a n/a n/a n/a n/a

VA No n/a n/a n/a n/a

* n/a means SCC 24-40-020-000 not included in 2007 inventory; see text for further discussion

4.4.2 OTC Model Rules for Architectural and Industrial Maintenance Coatings

On August 14, 1998, USEPA issued the final version of their National Volatile Organic 

Compound Emission Standards for Architectural Coatings under Section 183(e) of the 

Clean Air Act. This final rule applied only to manufacturers and importers of architectural 

coatings, and set VOC content limits for 61 coating categories. This rule specifically 

allowed states or local governments to adopt more stringent coating limits.

The OTC adopted an AIM model rule more stringent than the national rule, and based 

primarily on the 2000 CARB suggested control measure (SCM) for AIM coatings. The 

2001 OTC model rule was estimated to provide a 31 percent incremental reduction in VOC 

emissions compared to the Federal Part 59 rule and was applied to the following SCCs:

24-01-001-000 All Architectural Coatings

24-01-002-000 Architectural Coatings Solvent Based

24-01-003-000 Architectural Coatings Water Based

24-01-008-000 Traffic Markings

24-01-100-000 Industrial Maintenance Coatings

24-01-200-000 Other Special Purpose Coatings

The OTC 2009/2010 model rule is an update of the 2001 model rule. It is based the 2007 

CARB suggested control measure. The OTC 2009/2010 rule includes new categories 

which were defined in the 2007 CARB measure and revised limits for several coating 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 41

categories In addition to the revised limits in the 2007 CARB SCM, the OTC model rule 

also includes a more stringent VOC limit for the Industrial Maintenance (IM) coating 

category that was included in the 2000 CARB SCM. The 2000 CARB SCM proposed a 

limit of 250 g/L with an optional limit of 340 g/L for colder climates. The 2002 OTC 

model rule included the 340 g/l due to concerns about the ability to comply in the colder 

northeast. Because of the success of implementing the revised limit throughout California 

and the advent of t-butyl acetate as a delisted solvent, OTC believes a 250 g/L VOC limit 

is now feasible and has included this new lowered limit in the 2010 model rule. 

The CARB SCM data was used to estimate a 34.4 percent reduction for architectural 

coatings and a 9.7 percent reduction for traffic markings. For industrial maintenance 

coatings, a 26.5 percent reduction was estimated based on lowering the VOC content limit 

from 340 g/L to 250 g/L. Other specialty coatings are another form of industrial high 

performance maintenance coatings (IM), so the IM control factor was also used for the 

other specialty coatings SCC.

States were polled to determine whether they had adopted a rule that would achieve 

reductions equivalent to the 2006 OTC recommendations and whether the estimated 

reduction in VOC emissions should be applied in 2017 and 2020. Many states adopted the 

rule prior to 2007 and have already accounted for the reductions attributable to the rule in 

their 2007 inventories. Other states had compliance dates after 2007 and the effect of the 

rule was not accounted for in their 2007 inventory. State-by-state recommendations to 

account for the AIM rule are shown in Exhibit 4.4. 

Exhibit 4.4 State Recommendations for OTC AIM Rule

State

Is OTC 

2001 Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Percent Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT No 31 AIM

34.4 ARCH

9.7 TM

26.5 IM

31 AIM

34.4 ARCH

9.7 TM

26.5 IM

DE Yes 0 AIM

34.4 ARCH

9.7 TM

26.5 IM

0 AIM

34.4 ARCH

9.7 TM

26.5 IM

DC Yes 0 AIM

34.4 ARCH

9.7 TM

26.5 IM 0 AIM

34.4 ARCH

9.7 TM

26.5 IM

ME No 31 AIM 34.4 ARCH

9.7 TM

31 AIM 34.4 ARCH

9.7 TM
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 42

State

Is OTC 

2001 Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Percent Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

26.5 IM 26.5 IM

MD Yes 0 AIM

34.4 ARCH

9.7 TM

26.5 IM

0 AIM

34.4 ARCH

9.7 TM

26.5 IM

MA No 31 AIM

34.4 ARCH

9.7 TM

26.5 IM

31 AIM

34.4 ARCH

9.7 TM

26.5 IM

NH No 0 AIM

55.5 ARCH

37.7 TM

49.4 IM

0 AIM

55.5 ARCH

37.7 TM

49.4 IM

NJ Yes 0 AIM

34.4 ARCH

9.7 TM

26.5 IM

0 AIM

34.4 ARCH

9.7 TM

26.5 IM

NY Yes 0 AIM

34.4 ARCH

9.7 TM

26.5 IM

0 AIM

34.4 ARCH

9.7 TM

26.5 IM

PA Yes 0 AIM

34.4 ARCH

9.7 TM

26.5 IM

0 AIM

34.4 ARCH

9.7 TM

26.5 IM

RI No 31 AIM

34.4 ARCH

9.7 TM

26.5 IM

31 AIM

34.4 ARCH

9.7 TM

26.5 IM

VT No 0 AIM

55.5 ARCH

37.7 TM

49.4 IM

0 AIM

55.5 ARCH

37.7 TM

49.4 IM

VA-NVA Yes 0 AIM 0 AIM 0 AIM 0 AIM

VA-FRD No 31 AIM 0 AIM 31 AIM 0 AIM

VA-Other No 0 AIM 0 AIM 0 AIM 0 AIM

AIM – includes all AIM coatings listed below:

ARCH – architectural

TM - traffic markings

IM - industrial maintenance

VA-NVA includes the cities/counties in the Northern Virginia emission control area

VA-FRD includes the cities/counties in the Fredericksburg emission control area

VA-Other includes cities/counties in Virginia not listed above 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 43

4.4.3 OTC Model Rule for Asphalt Paving

OTC Resolution 06-02 recommends that states establish rules to achieve a 20 percent 

reduction in VOC emissions from the application and use of emulsified and cutback 

asphalt. The reductions apply to the following SCCs:

24-61-021-000 Cutback Asphalt

24-61-022-000 Emulsified Asphalt

States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC recommendations and whether the estimated 

reduction in VOC emissions should be applied in 2017 and 2020. Some states adopted the 

rule prior to 2007 and have already accounted for the reductions attributable to the rule in 

their 2007 inventories. Other states had compliance dates after 2007 and the effect of the 

rule was not accounted for in their 2007 inventory. State recommendations to account for 

the asphalt paving recommendation are shown in Exhibit 4.5. 

Exhibit 4.5 State Recommendations for OTC Cutback and Emulsified 

Asphalt Paving Recommendation

State

Is Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Percent Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT No 20 0 20 0

DE Yes 0 0 0 0

DC No 0 20 0 20

ME No emissions 

in inventory 0 0 0 0

MD No 0 20 0 20

MA No 20 0 20 0

NH No 0 20 0 20

NJ No 56% Cutback

25% Emulsified 0

56% Cutback

25% Emulsified 0

NY No 20 0 20 0

PA No 0 20 0 20

RI No 20 0 20 0

VT No emissions 

in inventory 0 0 0 0

VA-NVA No 0 0 0 0

VA-Other No 0 0 0 0
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 44

4.4.4 OTC Model Rules for Consumer Products

Several states began regulating the VOC content of consumer products in the early 1990s. 

The USEPA promulgated a national rule in 1998 (40CFR, Part 59, Subpart C). Both the 

California Air Resources Board (CARB) and the OTC states have periodically updated 

their state rules to obtain VOC reductions beyond those required by the federal rule. 

Following the lead of CARB, the OTC 2001 model rule for consumer products adopted 

more stringent VOC content limits for certain categories. The OTC 2006 model rule 

modified the OTC 2001 model rule based on amendments adopted by CARB in July 2005

to include additional products and more stringent VOC limits for certain products. CARB 

amended their rules again in 2006 and the OTC 2010 model rule is based on those 

amendments. 

The OTC 2010 model amendments have more restrictive VOC limits for 14 existing 

consumer product categories (15 including subcategories) and three new categories (five 

including subcategories) will be regulated for the first time with VOC limits. The OTC 

2010 model rule amendments also clarify or modify previously defined or regulated 

categories. The model rules also contained optional prohibitions on the use of chlorinated 

toxic compounds in certain consumer product categories. CARB adopted these provisions 

simultaneous with their VOC limits to address the use of non-VOC chlorinated solvent use 

increasing as they are used as replacement compounds.

The VOC percentage reduction from the various rules and amendments are summarized in 

Exhibit 4.6. The emissions reductions from the latest OTC consumer products rule update 

used information developed by CARB for its 2006 amendments. The OTC estimated a 4.8 

percent reduction of the total consumer products inventory for states that included CARB’s 

ban of chlorinated toxic compounds in brake cleaners, and an estimated 3.3 percent 

reduction of the total consumer products inventory for states that did not include this ban.

States reported VOC emissions from consumer products inventory in two different 

manners – using an aggregated SCC or subcategory SCCs, as follows:

Aggregated SCC: 24-60-000-000 Consumer Products, All Products

24-65-000-000 Consumer Products, All Products

Disaggregated SCCs: 24-60-100-000 Consumer Products, Personal Care Products

24-60-200-000 Consumer Products, Household Products

24-60-400-000 Consumer Products, Auto Aftermarket Products

24-60-500-000 Consumer Products, Coatings

24-60-600-000 Consumer Products, Adhesives and Sealants

24-60-800-000 Consumer Products, FIFRA Products

24-60-900-000 Consumer Products, Misc. Products
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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Exhibit 4.6 VOC Emission Factors for Consumer Products

Uncontrolled Emission Factor: = 7.84 lbs/capita

Emission Factor after 1998 Federal Rule: = 7.06 lbs/capita

Percent Reduction from 1998 Federal Rule 

compared to uncontrolled

=

=

100%* (7.84 - 7.06) / 7.84

9.95%

Emission Factor after 2001 OTC Rule = 6.06 lbs/capita

Percent Reduction from 2001 OTC Rule compared 

to Federal Rule

=

=

100%* (7.06 - 6.06) / 7.06

14.2%

Emission Factor after 2006 OTC Rule = 5.94 lbs/capita

Percent Reduction from 2006 OTC Rule compared 

to OTC 2001 Rule

=

=

100%* (6.06 -5.94) / 6.06

2.0%

Emission Factor after 2010 OTC Rule

(without brake cleaner chlorinated toxic ban)

= 5.745 lbs/capita

Percent Reduction from 2010 OTC Rule compared 

to OTC 2006 Rule

=

=

100%* (5.94 – 5.745) / 5.94

3.3%

Emission Factor after 2010 OTC Rule

(with brake cleaner chlorinated toxic ban)

= 5.655 lbs/capita

Percent Reduction from 2010 OTC Rule compared 

to OTC 2006 Rule

=

=

100%* (5.94 – 5.655) / 5.94

4.8%

The reductions shown above were applied to the above SCCs based on each state’s 

adoption of the various rules and amendments as well as the decision with respect to the 

ban on chlorinated toxic compounds used in brake cleaners. States were polled to 

determine whether they have adopted a rule that would achieve reductions equivalent to 

the OTC 2006 recommendations and whether the estimated reduction in VOC emissions 

should be applied in 2017 and 2020. For the 2001 OTC rule, some states adopted the rule 

prior to 2007 and have already accounted for the reductions attributable to the OTC 2001 

rule in their 2007 inventories. Other states had compliance dates after 2007 and the effect 

of the OTC 2001 rule was not accounted for in their 2007 inventory. None of the states 

have accounted for the OTC 2006 rule in their 2007 inventories. State-by-state

recommendations to account for both the OTC 2001 and 2006 consumer products rules are 

shown in Exhibit 4.7.
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Exhibit 4.7 State Recommendations for OTC 2001 and 2006 

Consumer Products Rules

State

Is 2001 Rule 

Accounted 

for in 2007 

Inventory

Is 2006 Rule 

Accounted 

for in 2007 

Inventory

VOC Percent Reduction to use in:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT No No 15.9 4.8 15.9 4.8

DE Yes No 2.0 4.8 2.0 4.8

DC No No 2.0 4.8 2.0 4.8

ME No No 15.9 4.8 15.9 4.8

MD Yes No 2.0 4.8 2.0 4.8

MA No No 15.9 4.8 15.9 4.8

NH No No 14.2 5.2 14.2 5.2

NJ Yes No 2.0 4.8 2.0 4.8

NY Yes No 2.0 4.8 2.0 4.8

PA Yes No 2.0 4.8 2.0 4.8

RI No No 15.9 4.8 15.9 4.8

VT No No 0 18.6 0 18.6

VA-NVA Yes No 2.0 0 2.0 0

VA-FRD No No 15.9 0 15.9 0

VA-RCH No No 15.9 0 15.9 0

VA-Other No No 0 0 0 0

NH indicated that their amendments to include the OTC 2006 recommendations 

won’t be completed in time to include in the OTB/OTW inventory

4.4.5 OTC Model Rules for Mobile Equipment Repair and Refinishing

The USEPA promulgated a national rule in 1998 (40CFR, Part 59, Subpart B) to limit the 

VOC content of coatings usedin the refinishing of automobiles. The federal standards 

were estimated to reduce nationwide emissions of VOC by about 37 percent compared to 

uncontrolled 1998 emissions. The 2002 OTC model rule established requirements for 

using higher efficiency coating application equipment, such as high volume-low pressure 

paint guns, using spray gun cleaning equipment that minimizes solvent loss, and enclosed 

spray gun cleaning. The Federal VOC limits on the paints was maintained in the model 

rule. An incremental control effectiveness of 38 percent was estimated for the OTC 2001 

model rule (post-1998 federal standard emissions). 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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The 2009 OTC model rule for Motor Vehicle and Mobile Equipment Non-assembly Line 

Coating Operations (2009 OTC MVME model rule) seeks to limit the VOC content in 

coatings and cleaning solvents used in motor vehicle and mobile equipment non-assembly 

line coating operations. The 2009 OTC MVME model rule is an update of the 2002 OTC 

MERR model rule. The OTC developed the 2009 OTC MVME Model Rule using the 

CARB 2005 Suggested Control Measure (SCM) for Automotive Coatings as a guideline. 

The CARB 2005 SCM estimated a 65 percent reduction in VOC emissions from 2002 

CARB baseline emissions, which are post-1998 federal standard emissions. Similar 

reductions of 65 percent are expected from implementation of the 2009 OTC MVME 

Model Rule. 

A few OTC states adopted the 2002 OTC model rule and accounted for the 38 percent 

reduction in the 2007 MANEVU+VA inventory. Other states adopted the 2002 OTC 

model rules after 2007, so the reduction was not included in 2007 but was included in the 

2017/2020 “on-the-books” inventory. Still other states have not yet adopted the 2002 OTC 

model rule. Exhibit 4.8 summarizes the percent reductions that will be applied based on 

the adoption status of each state:

Exhibit 4.8 VOC Emission Reductions for Auto Refinishing

State Rule Adoption Status

VOC Reduction:

2017/2020 

Existing

2017/2020 

Potential

Accounted for 2002 OTC rule in 2007 inventory

Will adopt 2009 OTC rule by 2017

0 % 65 %

Did not account for 2002 OTC rule in 2007 inventory

Did account for 2002 OTC rule in 2017/2020 OTB inventory

Will adopt 2009 OTC rule by 2017

38 % 65 %

Did not account for 2002 OTC rule in 2007 inventory

Did not account for it in 2017/2020 OTB inventory

Will adopt 2009 OTC rule by 2017

0 % 78.3 %

The reductions have traditionally been applied to the following area source SCCs:

24-01-005-000 Auto Refinishing / All Solvent Types

24-01-005-500 Auto Refinishing / Surface Preparation Solvents

24-01-005-600 Auto Refinishing / Primers

24-01-005-700 Auto Refinishing / Top Coats

24-01-005-800 Auto Refinishing / Clean-up Solvents
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Page 48

States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC recommendations and whether the estimated 

reduction in VOC emissions should be applied in 2017 and 2020. Many states adopted the 

rule prior to 2007 and have already accounted for the reductions attributable to the rule in 

their 2007 inventories. Other states had compliance dates after 2007 and the effect of the 

rule was not accounted for in their 2007 inventory. State-by-state recommendations to 

account for the auto refinishing rule are shown in Exhibit 4.9. 

Exhibit 4.9 State Recommendations for OTC Auto Refinishing Rule

State

Is OTC 

2001 Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT Yes 0 65 0 65

DE Yes 0 65 0 65

DC No 38 65 38 65

ME No 38 65 38 65

MD Yes Yes 0 65 0

MA No 0 78.3 0 78.3

NH No 0 78.3 0 78.3

NJ Yes 0 65 0 65

NY Yes 0 65 0 65

PA Yes 0 65 0 65

RI Yes 0 65 0 65

VT No emissions 

in inventory 0 0 0 0

VA-NVA Yes 0 0 0 0

VA-FRD No 38 0 38 0

VA-Other No 0 0 0 0
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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4.4.6 OTC Model Rules for Portable Fuel Containers 

In 2001, the OTC developed a model rule to control VOC emissions from portable fuel 

containers. The 2001 model rule was based on the technical work conducted by California 

Air Resources Board (CARB) for developing California’s 2000 fuel container rule. 

Several, but not all, of the MANEVU+VA states adopted regulations which became 

effective prior to 2007. 

After OTC developed its model rule in 2001, CARB realized that its original study and 

rule had some defects and decided to conduct further studies and research on fuel 

containers. Based on its new studies, CARB revised its rule twice. In 2006, the OTC 

developed a second model rule for PFCs to reflect the CARB revisions. Thereafter, 

USEPA developed a federal rule in 2007 which included, among other things, 

requirements for portable fuel containers equivalent to OTC’s 2006 requirements. 

The federal requirements became effective on January 1, 2009. States have analyzed the 

federal rule and determined that the federal rule has requirements that are essentially 

equivalent to the OTC 2006 model rule. These new federal requirements will reduce 

hydrocarbon emissions from uncontrolled fuel containers by approximately 75 percent. 

Assuming a 10-year turnover to compliant cans, only 10 percent of the existing inventory 

of PFCs will comply with the new requirements in 2010. Therefore, only 10 percent of the 

full emission benefit estimated by USEPA will occur by 2010 – the incremental reduction 

will be about 7.5 percent in 2010. In 2013, there will be a 40 percent turnover to compliant 

cans, resulting in an incremental reduction of about 60 percent. By 2017, the will be 80 

percent penetration to compliant PFCs, resulting in an incremental reduction of 58 percent 

in 2018. By 2020, there will be 100 percent penetration to compliant PFCs, resulting in an 

incremental reduction of 75 percent in 2020.

The reductions apply to the following SCCs:

25-01-011-xxx Residential PFCs

24-01-012-xxx Commercial PFCs

States were polled to determine the status of PFC regulations in each state. Some states 

have adopted a rule that would achieve reductions equivalent to the 2001 or 2006 OTC 

rules. Other states will rely exclusively on the Federal rule. State-by-state

recommendations to account for the OTC and federal PFC rules are shown in Exhibit 4.10. 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 50

Exhibit 4.10 State Recommendations for OTC and Federal 

Portable Fuel Container Rules

State

Compliance 

Date for 

OTC 2001 

Rule

Compliance 

Date for 

OTC 2006 

Rule

Rely on 

Federal 

Rule?

VOC Percent Reduction to use in:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT May 2004 Jun 2008 No 81 0 81 0

DE Jan 2003 Apr 2010 Yes 75 0 78 0

DC Dec 2004 Feb 2012 Yes 79 0 81 0

ME Jan 2004 n/a Yes 77 0 80 0

MD May 2003 Jan 2009 No 76 0 79 0

MA n/a n/a Yes 77 0 85 0

NH n/a Jan 2008 No 85 0 85 0

NJ Jan 2005 Jan 2009 No 83 0 83 0

NY Jan 2005 Jan 2010 Yes 79 0 82 0

PA Jan 2005 n/a Yes 75 0 78 0

RI n/a n/a Yes 77 0 85 0

VT n/a n/a Yes 77 0 85 0

VA-NVA Jan 2005 Aug 2010 Yes 79 0 82 0

VA-FRD Jan 2008 Aug 2010 Yes 83 0 85 0

VA-RCH n/a n/a Yes 77 0 85 0

VA-Oth n/a n/a Yes 77 0 85 0

4.4.7 OTC Model Rule for Solvent Cleaning

The OTC model rule establishes hardware and operating requirements for specified vapor 

cleaning machines, and solvent volatility limits and operating practices for cold cleaners. 

An incremental control effectiveness of 66 percent was estimated for the OTC model rule 

relative to the base case. The reductions apply SCCs in the 24-15-xxx-xxx series 

(Degreasing All Industries and Processes). States were polled to determine whether they 

have adopted a rule that would achieve reductions equivalent to the 2001 OTC 

recommendations and whether the estimated reduction in VOC emissions should be 

applied in 2017 and 2020. Many states adopted the rule prior to 2007 and have already 

accounted for the reductions attributable to the rule in their 2007 inventories. Other states 

had compliance dates after 2007 and the effect of the rule was not accounted for in their 

2007 inventory. State-by-state recommendations to account for the solvent cleaning rule 

are shown in Exhibit 4.11. 
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Page 51

Exhibit 4.11 State Recommendations for 2001 OTC Solvent Cleaning Rule

State

Is Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT No 66 0 66 0

DE Yes 0 0 0 0

DC No 66 0 66 0

ME No 66 0 66 0

MD Partially 30 0 30 0

MA No 66 0 66 0

NH No 0 66 0 66

NJ Yes 0 0 0 0

NY Yes 0 0 0 0

PA Yes 0 0 0 0

RI No 66 0 66 0

VT n/a 0 66 0 66

VA-NVA Yes 0 0 0 0

VA-Other No 0 0 0 0

4.4.8 OTC Model Rules for ICI Boilers

In Resolution 06-02, the OTC Commissioners recommended that OTC member states

pursue as necessary and appropriate state-specific rulemakings or other implementation

methods to establish emission reduction percentages, emission rates or technologies for ICI

boilers based on guidelines that varied by boiler size and fuel type. 

States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC recommendations and whether the estimated 

reduction in NOx emissions should be applied in 2017 and 2020. All but one state

indicated that they have not adopted rules for area sources equivalent to the 2006 OTC 

recommendations. New Jersey specified that they have post-2007 ICI boiler rules that 

reduce NOx emissions and provided the estimates of the reductions in NOx emissions by 

SCC resulting from boiler tuneup requirements, as shown in Exhibit 4.12: 
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Exhibit 4.12 Area Source Emission Reductions from 

New Jersey ICI Boiler NOx Rules

SCC Source Category

Percent

Reduction 

from 

Tuneups 

2007-2017

Rule 

Effectiveness

Rule 

Penetration

Overall

Percent 

Reduction 

2007-2017

2102004000 Industrial Distillate 25% 80% 30% 6%

2102005000 Industrial Residual 25% 80% 30% 6%

2102006000 Industrial Natural Gas 25% 80% 30% 6%

2102007000 Industrial LPG 25% 80% 30% 6%

2103004000 Commercial Distillate 25% 80% 30% 6%

2103005000 Commercial Residual 25% 80% 30% 6%

2103006000 Commercial Natural Gas 25% 80% 30% 6%

2103007000 Commercial LPG 25% 80% 30% 6%

Other states indicated that they will likely depend on USEPA national rule for possible 

inclusion in the BOTW inventory. OTC Resolution 10-01 (June, 2010) called on USEPA

for national regulations for ICI boilers. The guidelines from OTC Resolution 06-02 shown 

in Exhibit 4.13 were used to estimate potential area source NOx reductions for the “what 

if” control scenario for all states in the MANE-VU+VA inventory except New Jersey and 

Virginia. 

Exhibit 4.13 OTC Resolution 06-02 Guidelines for ICI Boiler NOx Rules

Boiler Size

(mmBtu/hr)

NOx Percent Reduction from Base Emissions by Fuel Type

Natural Gas #2 Fuel Oil #4/#6 Fuel Oil Coal

<25 10 10 10 10

25 to 50 50 50 50 50*

50 to 100 10 10 10 10*

100 to 250 76 40 40 40*

>250 **   ** 

* Resolution 06-02 did not specify a percent reduction for coal; for modeling purposes, the same 

percent reduction specified for #4/#6 fuel oil was used for coal.

** Resolution 06-02 specified the reduction for > 250mmBtu/hour boilers to be the “same as EGUs 

of similar size.” The OTC Commissioners have not yet recommended an emission rate or percent 

reduction for EGUs. As a result, no reductions for ICI boilers > 250 mmBtu/hour were included in 

the potential controls inventory.
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 53

Since the above guidelines vary by boiler size and fuel type, the specific percent reduction

applied to an area source category depends on the SCC and design capacity of the source.

The SCC identifies the fuel type (for example, SCC 21-02-004-xxx describes distillate 

oilfired industrial boilers, SCC 21-02-006-xxx describes natural gas-fired industrial 

boilers). The area source inventory does not contain any information on the sizes of the 

units included in the inventories. To apportion area source emissions to the boiler size 

ranges listed above, we used data from an Oak Ridge National Laboratory study (EEA 

2005). We used the national estimates of boiler capacity by size range to calculate the 

percentage of total boiler capacity in each size range. Since the Oak Ridge report 

distinguished between industrial boilers and commercial/institutional boilers, we 

developed separate profiles for industrial boilers and for commercial/institutional boilers. 

We used these boiler size profiles to calculate weighted average percent reductions 

industrial boilers by fuel type and commercial/institutional boilers by fuel type, as follows:

34.5 percent reduction in NOx emissions from industrial boilers, all fuel types

28.1 percent reduction in NOx emissions from commercial/institutional boilers, all 

fuel types

Appendix I contains the data used to develop the NOx control factors for area source ICI 

boilers. 

4.4.9 OTC Model Rule for New, Small, Natural Gas-fired Boilers

The provisions of this model rule limit NOx emissions from new natural gas-fired ICI and 

residential boilers, steam generators, process heaters, and water heaters greater than 75,000 

BTUs and less than 5.0 million BTUs. This model rule may be implemented as a 

manufacturing restriction, a sales restriction, a use restriction, or a combination of these 

restrictions. Each implementing state agency will choose the entities to regulate after 

consideration of the agency’s compliance assurance and enforcement practices and 

policies. 

The emission limits of this model rule were developed from requirements now in effect in 

certain jurisdictions, including: (1) San Joaquin Valley Air Pollution Control District Rule 

4308 for boilers, steam generators, process heaters and water heaters with maximum rated 

heat input capacity equal to or greater than 75,000 Btu/hr and up to but less than 2.0 

million Btu/hr; (2) San Joaquin Valley Air Pollution Control District Rule 4307 for gasfired and liquid fuel-fired boilers, steam generators, and process heaters with maximum 

rated capacity of 2.0 million Btu/hr up to and including 5.0 million Btu/hr; and (3) similar 

rules adopted by other California Air Pollution Control Districts and the State of Texas.
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Page 54

Since the OTC model rule is based on SJVAPCD Rules 4307 and 4308, one method for 

estimating potential NOx reductions for the OTC states from both Rule 4307 and Rule 

4308 is to compare the natural gas usage in the San Joaquin Valley to the natural gas usage 

in the OTC states and calculate the proportional NOx reductions. 

The SJV 4308 Rule, Final Staff Report estimated NOx reductions of 2.0 annual average 

tons per day (730 tons per year), and the 2008 SJV 4307 Rule Proposal estimated NOx 

reductions of 1.15 annual average tons per day (420 tons per year). The total reduction 

from both rules was estimated to be 3.15 tons per day (1,150 tons per year) after a 15-year 

period for complete turnover to compliant equipment. These SJV data were used to 

calculate a ton per year emission reduction, assuming implementation begins in 2014, as 

summarized in Exhibit 4.14 and further documented in Appendix J.

Exhibit 4.14 NOx Control Factors for the OTC Rule for 

New, Small, Natural Gas-fired Units

State

Percent Reduction in NOx 

Emissions from Residential and 

Commercial Natural Gas Use

2017 2020

CT 5.0% 8.4%

DE 6.1% 10.1%

DC 2.3% 3.9%

ME 0.0% 0.0%

MD 3.2% 5.4%

MA 5.3% 8.8%

NH 7.1% 11.8%

NJ 3.5% 5.9%

NY 5.1% 8.5%

PA 4.7% 7.8%

RI 7.0% 11.7%

VT 3.1% 5.1%

VA 0% 0%
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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4.4.10 MANE-VU Low Sulfur Fuel Oil Strategy

MANE-VU developed a low sulfur fuel oil strategy to help states develop Regional Haze 

SIPs (MANE_VU 2007). The sulfur in fuel oil recommendations are shown in Exhibit 

4.15 and vary by state, type of fuel oil, and year of implementation. 

Exhibit 4.15 MANE-VU Low Sulfur Fuel Oil Strategy 

Inner Zone States (DE, NJ, NY, PA)

Fuel Oil Type Sulfur Content

2012

Sulfur Content

2016

Distillate 500 ppm 15 ppm

#4 Residual 0.25 % 0.25 %

#6 Residual 0.3 to 0.5 % 0.3 to 0.5 %

Outer Zone States (CT, DC, MA, MD, ME, NH, RI, VT)

Fuel Oil Type Sulfur Content

2014

Sulfur Content

2018

Distillate 500 ppm 15 ppm

#4 Residual n/a 0.25 to 0.5 %

#6 Residual n/a 0.5 %

Each state was polled and asked to provide guidance as to when, if at all, the MANE-VU 

strategy would be incorporated into their state rules. States were also asked to provide the 

2007 sulfur contents for each fuel type by county in order to calculate the percent reduction 

in emissions for the future years. Three states (MD, NJ, and NY) have adopted or are 

committed to adopting the strategy into their rules. The reductions for these three states 

were accounted for in the “existing controls” inventory. All other jurisdictions indicated 

that not enough regulatory development progress has been made to include the reductions 

in future years with absolute certainty. The potential reductions for these states were 

accounted for in the “potential new controls” inventory. One state (VA) has no plans to 

adopt the low sulfur fuel oil strategy. The percent reductions by fuel type and county are 

contained in Appendix K. 
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Page 56

5.0 NONEGU POINT SOURCE CONTROL FACTORS

Control factors were developed to estimate post-2007 emission reductions resulting from 

on-the-books regulations and proposed regulations/actions. Control factors were 

considered for the following national and regional measures:

Federal Rules Affecting NonEGU Point Sources

Control Technique Guidelines

OTC Model Rules 

These control programs are discussed in the following subsections. The control factors 

used for nonEGU point sources are provided in V3_3 NonEGU_07_17_20.xlsx.

5.1 FEDERAL ACTIONS AFFECTING NONEGU POINT SOURCES

USEPA made available its 2020 emissions projections associated with its 2005-based v4 

modeling platform (USEPA 2010a). These categories, and how they were accounted for in 

the MANE-VU+VA emission projection inventories, are described below: 

MACT Standards - USEPA developed guidance for estimating VOC and NOx

emission changes from MACT Rules (USEPA 2007b). We reviewed the guidance 

to identify nonEGU source controls associated with MACT standards for 

controlling HAPs. The information concerning MACT compliance periods was 

used to determine whether the MACT standard resulted in post-2007 emission 

reductions. Because major source categories had a compliance period of 2007 or 

earlier, we assumed that the emission reductions from the MACT standard should 

be reflected in the baseline year and not as an additional post- 2007 credit. The 

only exception to the above discussion of area source MACT standards pertains to 

the recently promulgated rules for reciprocating internal combustion engines. 

USEPA made available an estimate of the percent reduction in emissions 

attributable to the RICE MACT rule in 2012 and 2014 (USEPA 2010b). These 

reductions by SCC are shown in Exhibit 5.1. The USEPA 2014 estimates were 

used for the MANE-VU+VA 2017, 2020 and 2025 inventories. 

Industrial, Commercial, and Institutional Boilers and Process Heaters MACT 

Standard - USEPA’ s 2020 control factor file identified a number of solid fuelburning SCCs for which they estimated an 87% reduction in both PM10 and 

PM2.5. These were used for 2025 also for the affected SCCs.
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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Exhibit 5.1 USEPA Estimated Percent Reductions for RICE MACT Standard

SCC CO NOx PM10 PM2.5 VOC SCC Description

20100102 20.36 15.14 15.14 36.72 Electric Generation;Distillate Oil (Diesel);Reciprocating

20100105 20.36 15.14 15.14 36.72 Electric Generation;Distillate Oil (Diesel);Reciprocating: Crankcase Blowby

20100107 20.36 15.14 15.14 36.72 Electric Generation;Distillate Oil (Diesel);Reciprocating: Exhaust

20100202 19.86 12.53 23.87 Electric Generation;Natural Gas;Reciprocating

20100207 19.86 12.53 23.87 Electric Generation;Natural Gas;Reciprocating: Exhaust

20200102 20.36 15.14 15.14 36.72 Industrial;Distillate Oil (Diesel);Reciprocating

20200104 20.36 15.14 15.14 36.72 Industrial;Distillate Oil (Diesel);Reciprocating: Cogeneration

20200107 20.36 15.14 15.14 36.72 Industrial;Distillate Oil (Diesel);Reciprocating: Exhaust

20200202 19.86 12.53 23.87 Industrial;Natural Gas;Reciprocating

20200204 19.86 12.53 23.87 Industrial;Natural Gas;Reciprocating: Cogeneration

20200207 19.86 12.53 23.87 Industrial;Natural Gas;Reciprocating: Exhaust

20200253 19.18 37.96 29.74 Industrial;Natural Gas;4-cycle Rich Burn

20200254 37.85 28.59 Industrial;Natural Gas;4-cycle Lean Burn

20200256 37.85 28.59 Industrial;Natural Gas;4-cycle Clean Burn

20200301 19.18 37.96 29.74 Industrial;Gasoline;Reciprocating

20200307 19.18 37.96 29.74 Industrial;Gasoline;Reciprocating: Exhaust

20201001 19.86 12.53 23.87 Industrial;Liquified Petroleum Gas (LPG);Propane

20201002 19.86 12.53 23.87 Industrial;Liquified Petroleum Gas (LPG);Butane

20201702 19.18 37.96 29.74 Industrial;Gasoline;Reciprocating Engine

20201707 19.18 37.96 29.74 Industrial;Gasoline;Reciprocating: Exhaust

20300101 20.36 15.14 15.14 36.72 Commercial/Institutional;Distillate Oil (Diesel);Reciprocating

20300105 20.36 15.14 15.14 36.72 Commercial/Institutional;Distillate Oil (Diesel);Reciprocating: Crankcase Blowby

20300106 20.36 15.14 15.14 36.72 Commercial/Institutional;Distillate Oil (Diesel);Reciprocating: Evaporative Losses 

20300107 20.36 15.14 15.14 36.72 Commercial/Institutional;Distillate Oil (Diesel);Reciprocating: Exhaust

20300201 19.86 12.53 23.87 Commercial/Institutional;Natural Gas;Reciprocating
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SCC CO NOx PM10 PM2.5 VOC SCC Description

20300204 19.86 12.53 23.87 Commercial/Institutional;Natural Gas;Cogeneration

20300207 19.86 12.53 23.87 Commercial/Institutional;Natural Gas;Reciprocating: Exhaust

20300301 19.18 37.96 29.74 Commercial/Institutional;Gasoline;Reciprocating

20300307 19.18 37.96 29.74 Commercial/Institutional;Gasoline;Reciprocating: Exhaust

20301001 19.86 12.53 23.87 Commercial/Institutional;Liquified Petroleum Gas (LPG);Propane

20301002 19.86 12.53 23.87 Commercial/Institutional;Liquified Petroleum Gas (LPG);Butane

20400401 19.18 37.96 29.74 Engine Testing;Reciprocating Engine;Gasoline

20400402 20.36 15.14 15.14 36.72 Engine Testing;Reciprocating Engine;Diesel/Kerosene

20400403 20.36 15.14 15.14 36.72 Engine Testing;Reciprocating Engine;Distillate Oil: CI: CI: VOC 2005cr = 0

31000203 19.86 12.53 23.87 Oil and Gas Production;Natural Gas Production;Compressors

50100421 19.86 12.53 23.87 Solid Waste Disposal;Landfill Dump;Waste Gas Recovery: Internal Combustion 

Device
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Petroleum refinery enforcement settlements - For the facilities identified by 

USEPA located in New Jersey and Pennsylvania we applied post-2007 estimated 

reductions for NOx, PM10, PM2.5, and SO2 to affected units. 

5.2 RECENT CONTROL TECHNIQUE GUIDELINES 

Control Techniques Guidelines (CTGs) are documents issued by USEPA to provide states 

with the USEPA’s recommendation on how to control the emissions of VOC from a 

specific type of product or source category in an ozone nonattainment area. USEPA issued 

new or updated CTGs for 13 VOC categories in 3 groups during 2006, 2007 and 2008

(USEPA 2008b). The categories are:

2006 CTGs

 Flat Wood Paneling Coatings

 Industrial Cleaning Solvents

 Flexible Package Printing

 Lithographic Printing

 Letterpress Printing 

2007 CTGs

 Large Appliance Surface Coating

 Metal Furniture Coatings

 Paper Film and Foil Coatings

2008 CTGs

 Miscellaneous Metal Parts Coatings

 Plastic Parts Coatings 

 Auto and Light-duty Truck Assembly Coatings

 Fiberglass Boat Manufacturing

 Miscellaneous Industrial Adhesives

States indicated that they expected very little additional reductions from these new or 

amended CTGs. Therefore, no emission reductions were included in the inventory.

5.3 OTC MODEL RULES FOR NONEGUs

The OTC developed NOx control measures for industrial, commercial, and institutional 

(ICI) boilers and distributed generation units in 2001 (OTC 2001). We reviewed the 

OTC’s status reports to identify states status in adopting the OTC 2001 model rules (OTC 

2009). Most states have adopted the OTC model rules with compliance dates in 2007 or 

earlier. As a result, we assumed that the emission reductions from the 2001 OTC model 

rules for nonEGUs are already reflected in the 2007 inventory and no post- 2007 

reductions were applied. 
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In 2006, the OTC introduced model rules (OTC 2007) for one nonEGU VOC source 

category (adhesives/sealants) and new/more stringent requirements for several NOx source 

categories (asphalt production plants, cement kilns, glass/fiberglass furnaces, and

industrial, commercial, and institutional {ICI} boilers). 

These model rules and recommendations provided a consistent framework for air pollution 

regulation throughout the region. In addition, MANE-VU provided recommendations to 

require low sulfur home heating, distillate and residul fuel oil. Exhibit 5-2 briefly 

describes the OTC and MANE-VU control measures affecting point sources that have been 

recommended for adoption by the states in the OTR. Recommendations for EGUs are not 

addressed in this section since the projection of EGU emissions is being accomplished by 

ERTAC under a separate agreement. 

Individual states are in various stages of adopting the OTC recommendations into the rules 

and SIPs. We reviewed the OTC’s status reports to identify each state’s adoption status 

(OTC 2009, OTC 2011a, OTC2011b). To obtain further clarification, states were polled to 

determine whether they have adopted a rule that would achieve reductions equivalent to 

the OTC model rule or recommendation and whether credit for each rule was already 

accounted for in the 2007 inventory. 

Not all states have adopted all rules. In order to evaluate the impact of both the rules 

currently in place as well as the potential adoption of all control measures by all states, the 

state Air Directors specified that two emission control scenarios should be developed. 

Existing Controls - this scenario represents the best estimates for the future year,

accounting for all in-place controls that are fully adopted into federal or individual 

state regulations or SIPs. 

Potential New OTC Controls – this scenario accounts for all of the emission 

reductions from the existing control scenario plus new state or regional measures 

that are under consideration by the OTC or individual states. This is a “what if”

scenario that assumes that all states in the MANE-VU+VA region except Virginia 

will adopt all new OTC control measures under consideration by 2017. It does not 

include any potential new federal control measures that are under consideration. 

The following paragraphs describe the control factors applied for each control measure by 

state and future year. 
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Exhibit 5.2 Summary of Point Source OTC Control Measures

Source Category Pollutants Description

EGUs NOx OTC 2001. Provided emission standards for 

stationary combustion turbines, emergency 

generators, and load shaving units.

OTC 2009/2010. Recommended NOx emission rate 

limits for oil and gas boilers serving EGUs and 

emission rate limits for high energy demand day 

combustion turbines.

Asphalt Production Plants NOx OTC 2006. Provided emission rate limits and 

recommended a 35% reduction in NOx emissions.

Cement Kilns NOx OTC 2006. Provided emission rate limits and 

recommended a 60% reduction in NOx emissions.

Glass Furnaces NOx OTC 2006. Provided emission rate limits and 

recommended a 85% reduction in NOx emissions.

ICI Boiler Controls NOx OTC 2001. Recommended NOx emission rate limits 

for industrial boilers greater than 5 mmBtu/hour

OTC 2006. Recommended lower NOx emission rate 

limits for industrial, commercial, and institutional 

boilers

OTC 2010. Recommended national NOx controls for 

ICI boilers

Low Sulfur Fuel Oil SO2 MANE-VU 2006. Recommends sulfur content limits 

for home heating oil, distillate oil, and residual oil

Adhesives and Sealants VOC OTC 2006. Provided VOC content limits and other 

restrictions on adhesives used in industrial and 

commercial settings. 

Large Petroleum Storage 

Tanks

VOC OTC 2009/2010. Addresses high vapor pressure 

VOCs, such as gasoline and crude oil, stored in large 

aboveground stationary storage tanks, which are 

typically located at refineries, terminals and pipeline 

breakout stations. 
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5.3.1 OTC 2006 Model Rule for Adhesives and Sealants

The 2006 OTC model rule is intended to achieve VOC emission reductions from adhesive 

application sources. The OTC 2006 model rule for adhesives and sealants is based on the 

reasonably available control technology (RACT) and best available retrofit control 

technology (BARCT) determination by the California Air Resources Board (CARB) 

developed in 1998. The emission reduction benefit estimation methodology is based on 

information developed and used by CARB for their RACT/BARCT determination in 1998. 

The vast majority of the emissions regulated by this rule are in the area source inventory.

For point sources, we first identified those sources applying adhesives and sealants (using 

the SCC of 4-02-007-xx, adhesives application). Next, we reviewed the 2007 inventory to 

determine whether these sources had existing capture and control systems. Most of the 

sources did not have control information in the NIF database. However, several sources 

reported capture and destruction efficiencies in the 70 to 99 percent range, with a few 

sources reporting capture and destruction efficiencies of 99+ percent. Sources with 

existing control systems that exceeded an 85 percent overall capture and destruction 

efficiency would comply with the OTC 2006 model rule provision for add-on air pollution 

control equipment; therefore, no additional reductions were calculated for these sources. 

For point sources without add-on control equipment, we used a 64.4 percent reduction 

based on the CARB determination.

States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC model rule and whether the estimated reduction in 

VOC emissions should be applied in 2017 and 2020. New Hampshire indicated that they 

have no existing rule in place and no reductions should be applied. Virginia indicated that 

reductions from existing rules only apply in three regions: 

Northern Virginia (Arlington, Alexandria, Manassas, Manassas Park, Prince 

William, Loudon, Fairfax, Fairfax City, Falls Church, and Stafford), 

Fredericksburg (Fredericksburg and Spotsylvania), and 

Richmond (Charles City, Colonial Heights, Chesterfield, Hopewell, Hanover, 

Petersburg, Henrico, City of Richmond, and Prince George). 

All other states have existing rules in place that will require VOC reductions before 2017. 

Exhibit 5.3 shows the reduction that were applied by state under both the existing controls 

inventory and the “what if” inventory.
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Exhibit 5.3 State Recommendations for OTC Adhesives/Sealants Rule

State

Is Rule 

Accounted 

for in 2007 

Inventory*

Incremental VOC Reduction to Apply:

2017

Existing

Controls

2017

Potential

Controls

2020

Existing

Controls

2020

Potential

Controls

CT No 64.4 0 64.4 0

DE No 64.4 0 64.4 0

DC n/a n/a n/a n/a n/a

ME No 64.4 0 64.4 0

MD No 64.4 0 64.4 0

MA No 64.4 0 64.4 0

NH No 0 64.40 0 64.4

NJ No 64.4 0 64.4 0

NY No 64.4 0 64.4 0

PA No 64.4 0 64.4 0

RI No 64.4 0 64.4 0

VT n/a n/a n/a n/a n/a

VA-NVA No 64.4 0 64.4 0

VA-FRD No 64.4 0 64.4 0

VA-RCH No 64.4 0 64.4 0

VA-Other No 0 0 0 0

* Some sources in the 2007 inventory had VOC controls greater than 85% and already complied 

with the requirements; no incremental reduction was taken for these sources (see text)

n/a - no affected point sources identified in the inventory

5.3.2 OTC 2009/2010 Model Rule for Large Storage Tanks

The OTC model rule addresses high vapor pressure VOCs, such as gasoline and crude oil, 

stored in large aboveground stationary storage tanks, which are typically located at 

refineries, terminals and pipeline breakout stations. The OTC model rule is based on 

recent revisions to New Jersey’s VOC storage tank rules located at N.J.A.C. 7:27-16.2. 

The OTC model rules requires: 1) retrofiting floating roof tanks to reduce emissions from 

deck fittings; 2) retrofitting external floating roof tanks with domes; 3) controlling roof 

landing losses; and 4) adding controls for degassing and interior tank cleaning. New Jersey 

estimated reductions for tanks located in New Jersey would total approximately 2,000 tons 

per year by 2020. In making these estimates, New Jersey developed the following VOC 

percent reduction estimates for the following categories of storage tanks:
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Tank Location Point Source SCC

VOC Percent Reduction

2017 2020

Refinery

4-03-011-xx

(floating roof tank SCCs,

gasoline or crude oil only)

82 85

Bulk Terminal 4-04-001-xx

(floating roof tank SCCs) 40 50

Bulk Plant and Pipeline 

Breakout Station

4-04-002-xx

(floating roof tank SCCs

gasoline or crude oil only)

52 65

Only New Jersey has existing rules in place, and the above percent reductions were applied 

to the existing controls inventory. 

For all other states with affected sources, the potential reductions from the OTC rule were 

applied in the “what if” inventory. 

5.3.3 OTC 2006 Model Rule for Asphalt Production Plants

The OTC recommended that member states pursue state-specific rulemakings or other 

implementation methods that would achieve a 35 percent reduction in NOx emissions. 

States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC model rule and whether the estimated reduction in 

NOx emissions should be applied in 2017 and 2020. Only Maine, New Jersey and New 

York indicated that the reductions should be applied. A 35 percent reduction in NOx 

emissions for fuel burning SCCs in the 3-05-002-xx series was applied to the existing 

controls inventory for Maine, New Jersey, and New York. 

All other states indicated that the NOx reductions should not be applied in the existing 

controls inventory. The 35 percent reduction for other states was applied in the “what if”

inventory.

5.3.4 OTC 2006 Model Rule for Cement Manufacturing Plants

Cement kilns are located in Maine, Maryland, New York, Pennsylvania, and Virginia. The 

OTC recommended state-specific rulemakings or other implementation methods that 

would result in about a 60 percent reduction in uncontrolled levels NOx emissions or meet 

the following emission limits based on kiln type: 

Wet: 3.88 lb/ton clinker

Long Dry: 3.44 lb/ton clinker

Preheater: 2.36 lb/ton clinker

Precalciner: 1.52 lb/ton clinker
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Cement kilns are already subject to NOx controls as part of Phase I of the NOx SIP call or 

state-specific RACT requriements. The emission reductions resulting from the NOx SIP 

call or RACT requirements are already accounted for in the 2007 inventory. 

The following methods were used to calculate the additional reductions from the OTC 

2006 Control Measure in each state:

Maine has a single kiln that was converted from an existing wet process cement 

kiln to a dry process (preheater/precalciner type) kiln and underwent a BACT 

review around 2005. The permitted emission rate is 1,533 tons per year with an 

annual capacity of 766,500 tons of clinker (e.g., about 4 lbs/ton of clinker). Maine 

does not plan on any additional controls, so no incremental reductions were applied 

for the either the existing controls or “what if” inventory. 

Maryland indicated controls will become effective in 2011 for the two facilities in 

the state. Maryland specified a 25 percent reduction for the Holcim facility and a 

40 percent reduction for the Lehigh facility for the existing controls inventory. No 

reductions were specified for the two kilns at the Essroc facility for the existing 

controls inventory. No additional reductions were specified for any cement kiln for 

the “what if” inventory. 

New York three cement plants: Each has a different RACT requirement effective 

7/1/2012. The three limits are; 6.59 lb/ton, 2.88 lb/ton and 1.5 lb/tom (30 day 

rolling average). For this inventory, we have assumed that these post-2007 RACT 

requirements have an incremental control efficiency of 40 percent and we have 

applied this reduction in the existing controls inventory. No additional reductions 

were specified for any cement kiln for the “what if” inventory. 

Pennsylvania provided kiln-specific projected future year NOx emissions for 2017 

and 2020 based on existing post-2007 state requirements. A kiln-specific control 

factor was calculated based on the ratio of the future year emissions to the 2007 

emissions and was applied for the existing controls inventory. No additional 

reductions were specified for any cement kiln for the “what if” inventory. 

Virginia has a single preheater/precalciner kiln that is not located in the OTR. 

Virginia does not plan on any additional controls since the facility is not in the 

OTR, so no incremental reductions were applied for the either the existing controls 

or “what if “ inventories. 
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5.3.5 OTC 2006 Model Rule for Glass and Fiberglass Furnaces

The OTC recommended state-specific rulemakings or other implementation methods to 

achieve an approximately 85 percent reduction in NOx emissions from uncontrolled levels. 

Emission reductions for glass and fiberglass furnaces were calculated using the 

methodology previously developed and documented in the OTC report (OTC 2007). Glass 

and fiberglass furnaces are located in Maryland, Massachusetts, New Jersey, New York, 

Pennsylvania, and Virginia. The following methods were used to calculate the additional 

reductions from the OTC 2006 Control Measure in each state:

Maryland indicated that a 48 percent reduction should be applied to the single glass 

manufacturing facility in Maryland. 

Massachusetts indicated that they have a single facility with two furnaces furnaces; 

one furnace installing oxy-firing at 1.3 lb NOx per ton of glass, and the other at 5.3 

lb/ton. The facility will be complying with EPA NSR enforcement Consent Decree 

by 2017. Massachusetts indicated that plant-wide emissions are expected to 

decrease by 35 percent in 2017 and 2020. 

New Jersey indicated that a 50 percent reduction in NOx emissions should be 

applied to glass and fiberglass furnaces in 2013, 2017, 2020 and 2025.

New York did not provide guidance regarding glass and fiberglass furnaces. We 

used the percent reductions developed and documented in the previous round of 

emission projections developed for MARAMA (MARAMA 2007). An 

incremental control efficiency of 70 percent was used for New York glass and 

fiberglass furnaces in that inventory.

Virginia indicated that they have no plans to implement the OTC measure, and no 

NOx reductions were applied to glass/fiberglass furnaces in Virginia. 

All of the above reductions for glass and fiberglass furnaces were accounted for in the 

existing controls inventory. No additional reductions were specified for any glass or 

fiberglass furnace for the “what if” inventory. 

5.3.6 OTC 2006 Model Rule for ICI Boilers

In Resolution 06-02, the OTC recommended that OTC member states pursue as necessary 

and appropriate state-specific rulemakings or other implementation methods to establish 

emission reduction percentages, emission rates or technologies for ICI boilers based on 

guidelines that varied by boiler size and fuel type.. 
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States were polled to determine whether they have adopted a rule that would achieve 

reductions equivalent to the 2006 OTC recommendations and whether the estimated 

reduction in NOx emissions should be applied in 2017 and 2020. Most states have not 

adopted rules equivalent to the 2006 OTC recommendations. These states indicated that 

they will likely to depend on USEPA national rule for possible inclusion in the BOTW 

inventory. Specifically, the OTC Resolution 10-01 (June, 2010) called on USEPA for 

national regulations for ICI boilers.

Three states specified that that have adopted post-2007 ICI boiler rules to reduce NOx 

emissions. The percent reductions for ICI boilers were for these states were calculated as 

describe in the following paragraphs.

New Jersey provided NOx percent reductions that varied by heat input rate and fuel/boiler 

type and included an 80 percent rule effectiveness adjustment, as shown in Exhibit 5.4. 

The NIF file submitted by New Jersey for this project did not include the boiler design 

capacity. This data gap was filled using the boiler design capacities previously developed 

for the OTC study in 2006, if available; otherwise the SCC description was used to assign 

a default boiler design capacity. No additional reductions were specified for the “what if” 

inventory for New Jersey.

Exhibit 5.4 NonEGU Point Source Emission Reductions from 

New Jersey ICI Boiler NOx Rules

Heat Input Rate

(mmBtu/hr) Fuel/Boiler Type

Overall % 

Reduction 

2007-2017

at least 5 but < 10 All 20%

at least 10 but < 20 All 20%

at least 25 but < 50 Natural gas only 40%

No. 2 Fuel oil only 40%

Refinery fuel gas and 

other gaseous fuels 40%

Other liquid fuels 40%

Duel Fuel using fuel oil 

and/or natural gas 40%

at least 50 but < 100 Natural gas only 40%

No. 2 Fuel oil only 27%

Other liquid fuels 27%

Duel Fuel using fuel oil 

and/or natural gas 40%

at least 100 or greater No. 2 Fuel oil only 40%
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New York specified that a 50 percent reduction should be applied in the existing controls 

inventory for all boilers with greater than 25 mmBtu/hour design capacity. The NIF file 

submitted by New York for this project did not include the boiler design capacity. This 

data gap was filled using the boiler design capacities previously developed for the OTC 

study in 2006, if available; otherwise the SCC description was used to assign a default 

boiler design capacity. No additional reductions were specified for the “what if” inventory 

for New York.

New Hampshire specified that reductions should be applied to boilers in the 50-100 and 

100-250 mmBtu/hour size ranges. We used the methodology previously developed and 

documented in the OTC report (OTC 2007). Reductions vary by size range and fuel type. 

State-by-state emission reduction percentages were developed by comparing the state 

emission limit in lbs/mmBTU to the OTC 2006 recommended limit. There are no coalfired ICI boilers in New Hampshire. For other fossil fuels used in New Hampshire, the 

NOx percent reduction was as follows:

Natural gas, 50-100 mmBtu/hr: 50% reduction

Natural gas, 100-250 mmBtu/hr: 0% reduction

Residual/distillate oil, 50-100 mmBtu/hr: 33.3% reduction

Residual/distillate oil, 100-250 mmBtu/hr: 33.3% reduction

No additional reductions were specified for the “what if” inventory for New Hampshire.

All other states do not have existing rules that would result in post-2007 emission 

reductions. These states indicated that they will likely to depend on USEPA national rule 

for possible inclusion in the BOTW inventory. Specifically, the OTC Resolution 10-01 

(June, 2010) called on USEPA for national regulations for ICI boilers. However, in order 

to estimate the potential NOx emission reductions for the “what if” control scenario, the 

guidelines from OTC Resolution 06-02 shown in Exhibit 5.5 were used to estimate 

potential NOx reductions in the “what if” inventory for those states without existing rules, 

except Virginia. 

Exhibit 5.5 OTC Resolution 06-02 Guidelines for ICI Boiler NOx Rules

Boiler Size

(mmBtu/hr)

NOx Percent Reduction from Base Emissions by Fuel Type

Natural Gas #2 Fuel Oil #4/#6 Fuel Oil Coal

<25 10 10 10 10

25 to 50 50 50 50 50*

50 to 100 10 10 10 10*

100 to 250 76 40 40 40*
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>250 **   ** 

* Resolution 06-02 did not specify a percent reduction for coal; for modeling purposes, the same 

percent reduction specified for #4/#6 fuel oil was used for coal.

** Resolution 06-02 specified the reduction for > 250mmBtu/hour boilers to be the “same as EGUs 

of similar size.” The OTC Commissioners have not yet recommended an emission rate or percent 

reduction for EGUs. As a result, no reductions for ICI boilers > 250 mmBtu/hour were included in 

the potential controls inventory.

Since the above guidelines vary by boiler size and fuel type, the specific percent reduction 

applied to an individual source depends on the SCC and design capacity of the source. The 

SCC identifies the fuel type, while the design capacity identifies the boiler size. In many 

cases, the design capacities in the MANE-VU NIF database were missing. The following 

hierarchy was used in filling in gaps where design capacities were missing:

Use the design capacity field from the NIF EU table, if available;

Use the design capacities provided by agencies to fill in the data gaps in the 

MANE-VU 2002 inventory;

Use design capacity as reported either the Unit Description field in the NIF EU

table or the Process Description field from the NIF EP table, if available;

Use design capacity from the source’s Title V permit, if the Title V permit was 

online;

Use the SCC description to determine the design capacity (for example, SCC 1-02-

006-01 describes a >100 mmBtu/hr natural gas-fired boiler, SCC 1-02-006-02

describes a 10-100 mmBtu/hr natural gas-fired boiler).

After performing this gap-filling exercise, each boiler was assigned to one of the size 

ranges and fuel types shown in the above table. The emission reduction percentages by 

boiler size range and fuel type were then applied.

5.4 FUEL OIL SULFUR LIMITS 

MANE-VU developed a low sulfur fuel oil strategy to help states develop Regional Haze 

SIPs (MANE-VU 2007). As previously discussed in Section 4.5, Each state was polled 

and asked to indicate when, if at all, the MANE-VU strategy would be incorporated into 

their state rules. States were also asked to provide the 2007 sulfur contents for each fuel 

type by county in order to calculate the percent reduction in emissions for the future years. 

Three states (MD, NJ, and NY) have adopted or are committed to adopting the strategy 

into their rules. The reductions for these three states were accounted for in the “existing 
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Page 70

controls” inventory. All other jurisdictions indicated that not enough regulatory 

development progress has been made to include the reductions in future years with 

absolute certainty. The potential reductions for these states were accounted for in the 

“potential new controls” inventory. One state (VA) has no plans to adopt the low sulfur 

fuel oil strategy. The percent reductions by fuel type and county are contained in 

Appendix K. 

5.5 STATE-SPECIFIC NONEGU CONTROL FACTORS 

The following state-specific nonEGU control factors were provided:

Bellefield Boiler Plant, Allegheny County. Allegheny County indicated that this 

facility changed their fuel source from coal to natural gas in July 2009 and future 

year emissions were changed to reflect the fuel switch. 

USS Clairton Works, Allegheny County. The facility will remove Batteries 7-9 

and have Battery C operational by 2013, resulting in a change in PM emissions in 

2013. Also, USS Clairton Works will remove Batteries 1-3 and have Battery D 

operational in 2015, resulting in a change in PM emissions in 2017 and 2020. 

Chrysler, Delaware. The Chrysler facility (ID 1000300128) shut down in 2009. 

Delaware specified that only a 25 percent reduction should be taken for all 

pollutants since some emissions will be banked for future use by other sources. 

O S G Ship Management (ID 1000500093), Delaware. Delaware provided 

source-specific growth factors and percent reductions in VOC emissions for 2017 

and 2020 from the lightering operations at O S G Ship Management (ID 

1000500093).

Control Technology Guidance (CTG) Documents, Delaware. Delaware 

determined that VOC emission reductions from new CTG recommendations would 

be very small. Although the new CTGs set up new recommendations for higher 

control efficiencies, the actual VOC reductions would be minimum, if not none, 

because most DE’s existing facilities are not affected by the new requirements and 

emissions from those facilities are relatively small (based on 2002 inventory). 

Unit Shutdowns, Delaware. Delaware identified several emission units that have 

shut down at the following facilities: Dow Reichhold Specialty Latex (ID 

1000100016), SPI Poly-Ols (ID 1000300426), and Invistas (ID 1000500002). 

Emissions for all pollutants were set to zero for these units. 
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Dover Air Force Base, Delaware. Delaware identified four boilers at Dover Air 

Force Base (ID 1000100001) that ceased using fuel oil in March 2010. SO2 

emissions for these boilers were set to zero. 

Premcor Refinery NOx Plantwide Cap, Delaware. The refinery was sold to the 

Delaware City Refining Company and an agreement was reached with DNREC's 

Secretary that allows plant-wide applicability limit (cap) for NOx. To project 

emissions, as well as for modeling purposes, Delaware decided to spread out the 

NOx-cap to each stack. Delaware estimated a plantwide reduction of 10.05 percent 

in 2013 and 41.22 percent in both 2017 and 2020. 

Wausau Paper Specialty Products, Maine. The Wausau Paper Specialty 

Products facility (ID 2300700007) closed in 2009. All emissions were set to zero 

for this facility in the 2017 and 2020 projection inventories.

2009 NJ Rule for NOx for Municipal Solid Waste Incinerators, New Jersey. 

This rule will achieve a 27 percent reduction from one facility - Camden County 

Energy Recovery Associates, L.P. (ID 3400751614).

NJ rule for VOC Storage Tanks, New Jersey. New Jersey provided expected 

VOC emission reductions resulting from post-2007 rules for VOC storage tanks. 

For refinery floating roof storage tanks (SCC 4-03-011-xx), the reductions are 75 

percent for 2013, 82 percent for 2017, and 85 percent for 2020. For bulk terminal 

tanks (SCC 4-04-001-xx), the reductions are 20 percent for 2013, 40 percent for 

2017, and 50 percent for 2020. For pipeline breakout stations (SCCs 4-04-002-xx 

and 4-06-005-xx), the reductions are 26 percent for 2013, 52 percent for 2017, and 

65 percent for 2020. 

International Paper – Franklin Mill, Virginia. The International Paper –

Franklin Mill (ID 5109300006) closed effective 2010. All emissions were set to 

zero for this facility in the 2017 and 2020 projection inventories.
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6.0 NONROAD MODEL CATEGORIES

The USEPA’s NONROAD model estimates emissions from equipment such as 

recreational marine vessels, recreational land-based vehicles, farm and construction 

machinery, lawn and garden equipment, aircraft ground support equipment (GSE) and rail 

maintenance equipment. This equipment is powered by diesel, gasoline, compressed 

natural gas (CNG) or liquefied petroleum gas (LPG) engines. 

The National Mobile Inventory Model (NMIM) was developed by USEPA to develop 

county-level emission estimates for certain types of nonroad equipment. NMIM uses the 

current version the NONROAD model to develop emission estimates and was used to 

develop the projection inventories discussed here. The NMIM national county database 

contains monthly input data to reflect county specific fuel parameters and temperatures. 

Most of the work associated with executing NMIM involved updating the NMIM county 

database with State-specific information. For this analysis, we used the NMIM2008 

software (version NMIM20090504), the National County Database (version 

NCD20090531), and NONROAD2008a (July 2009 version) as a starting point. Changes 

were made to the NCD20090531 based on review of data by the States. The purpose of 

this review was to create a new NCD specific to the 2007 base year model runs and the 

three projection year model runs. Changes were made to a copy of the NCD20090531 to 

create a new NCD used for the emission inventory runs. That NCD is called 

NCD20090910MARAMA. 

6.1 STATE REVIEW OF NMIM FUEL CHARACTERISTICS 

For the 2017 and 2020 projection year inventories, AMEC provided data on fuel 

characteristics from the NCD20090531 to the States to determine if they had additional 

changes required for the fuel characteristics for future year inventories. None of the States 

had changes to the fuel characteristics, except for CT which provided revisions to the six 

fuels that they had provided for the 2007 base year inventory to account for a number of 

changes including changes to RVP and fuel sulfur.

Connecticut provided updated values for the volume and market share components for 

ethanol which is used by NMIM to determine the oxygen percentage for NONROAD runs. 

Complete data replacement records were obtained for CT for the following tables: gasoline 

inputs, diesel inputs, countymonthyear inputs, and datasource inputs. CT added six new 

fuels which were given NRGasolineIds of 5000-5005 inclusive. Data was provided for 

both the base year (2007) and projection years (2013, 2017, and 2020).
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The diesel fuel sulfur values for the projection years were maintained at their default 

values for all other States since they matched the USEPA recommended values.

6.2 USE OF EXTERNAL FILES IN THE PROJECTION YEAR NMIM 

RUNS

For the 2007 base year inventory (MARAMA 2012), revisions were made to the allocation 

files for several categories. These files are used to allocate emissions calculated at the state 

level down to the county level and to add entries to the countynrfile NCD table. States 

were asked if they would like to revise this table for future years. No revisions were 

recommended. Thus external files used for the 2007 base year runs were used in the runs 

for the projection years.

6.3 NMIM RUN SPECIFICATIONS

The specifications for each NMIM run were developed for groups of States within the 

MANE-VU+VA region. All States except for CT, NY, NJ and PA were run together for 

each year. CT was run alone for 2007, 2017, and 2020 because changes were requested for 

the base year. NY, NJ and PA were run together for each individual projection year. The 

settings for each specification panel within the NMIM model for the projection year runs 

are detailed below.

Description: A short descriptive term for the run was entered for each specific run.

Geography: The “county” option was selected for each run. All counties within the 

State were selected.

Time: Every month in the Months check box area was selected. On the time panel, 

the year (2017 or 2020) was selected in the drop down box and added to the year 

selections area. With the exception of the CT, all runs were performed for only one 

year. The Use Yearly Weather Data check box was selected; however, year 

specific data was not available within NMIM for the projection years. The only 

years included within the NMIM model for NCD20090531 are 1999-2008 

inclusive. If the specific year requested is not available, then NMIM uses 20 year 

average data for the estimates. Thus while the Use Yearly Weather Data box was 

checked, since the specific year was not there (except for the CT 2007 base year rerun), the 20 year average data in the countymonthhour table are used. However, 

because the meteorology data for future years will be assumed to be the same as 

was used for 2007, AMEC revised the AverageTemp and AverageRelHumidity 

values in the countymonthhour table of the NCD20090910MARAMA to reflect 

actual 2007 values. Thus the values in that table are 2007 values not 20 year 

average values and thus causes the NMIM model to run with the same data used for 

the 2007 base year runs.

Vehicles/Equipment: Only the nonroad vehicle/equipment area was selected. All 

fuels and all vehicle types were selected for each State run. Aircraft ground support 
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equipment was included in the run specifications but those records were removed 

during post-processing steps.

Fleet: No selections or information was entered in this panel.

Pollutants: Exhaust PM10, PM2.5, and Criteria pollutants (with HC reported as 

VOC) were selected except for CO2.

Advanced features: Only the server and database were selected in this panel.

Output: Under the Geographic Representation panel the County selection was 

made. In the General Output area, a new database was selected on the server for 

the output.

All added external files for use in each State run were placed in the externalfiles directory 

of the NCD. Entries for all external files included were included in the countynrfiles table 

of the NCD.

6.4 REMOVAL OF AIRPORT GROUND SUPPORT EQUIPMENT

The NMIM/NONROAD model calculates emissions from airport ground support 

equipment. As discussed in Section 7 of this TSD, emissions from airport ground support 

equipment is also included in USEPA’s aircraft inventory prepared using the Federal 

Aviation Administration’s Emissions and Dispersion Modeling System (EDMS). 

Correspondence with USEPA indicated that USEPA considers the emissions calculated by 

EDMS to be better than those calculated by NONROAD. For this reason, all emissions 

calculated by NMIM/NONROAD for airport ground support equipment were removed 

from the inventory to avoid double counting. 

6.5 STATE AND STAKEHOLDER REVIEW AND COMMENT

New York state provided the results of their own NONROAD model runs for 2017 and 

2020. These model results were provided by month and were used instead of the NMIM 

model runs made by MACTEC. 

6.6 CHANGES MADE FOR VERSION 3 MODEL RUNS

Two sectors of the inventory were updated in version 3. First, Virginia and New York 

requested that their emissions be recalculated using the information developed through 

Version 2 of the inventory for the MARAMA States. The Virginia reruns were performed 

for all categories except for ground support equipment and for recreational marine vessels. 

Recreational marine vessel emissions for Virginia were calculated along with those for 

other states (see below). Those values replaced the SEMAP supplied values used in 

versions prior to Version 3. In addition, estimates for all sectors of the inventory for New 

York other than ground support equipment and recreational marine vessels were calculated 
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using NMIM default data for the MARAMA area. New York had originally provided data 

from NONROAD model runs that they performed separately. For Version 3 of the 

inventory, New York emissions were calculated using NMIM runs set up using the same 

criteria as those for other states in earlier versions of the inventory. Both New York and 

Virginia were provided with the opportunity to review fuel characteristics prior to their 

runs. Only Virginia made changes to the fuels, however the only changes that were made 

were to assign alternative default fuels to counties. The fuel characteristics were not 

modified from the NMIM defaults, only the fuel IDs associated with a particular 

county/month combination were changed to another default fuel. Those changes were 

instituted in the NCD developed specifically for MARAMA. New York did not request 

any changes to the default values. In addition, the revisions made to the housing 

population allocation files were instituted for both states.

The second change in version 3 was to modify the recreational marine vessel populations 

for all states except Vermont and Maine. A revised population file was prepared for 

Virginia but not utilized in the version 3 runs. Estimates for Virginia, Vermont and Maine 

were prepared using the growth algorithm built into the NMIM/NONROAD model. For 

all other states, revised population data was estimated for the years 2017 and 2020. EPA 

had recommended that rather than use the default growth algorithm of the model for those 

states that had their 2007 base year data updated for this category, separate population 

estimates for each projection year should be prepared and included in the population files. 

The 2007 population data was provided by the National Marine Manufacturers Association 

(NMMA). Total state populations for each of the three major categories contained in the 

NONROAD model (outboard, inboard/sterndrive and personal watercraft) were provided 

for each state. Because the population files used by the NONROAD model (and thus 

NMIM) were configured with population values for various horsepower categories, AMEC 

(formerly AMEC) determined the fraction of the total for each marine vessel type in each 

horsepower category from the NONROAD default population files. These fractions were 

then used to allocate the total state population obtained from NMMA to the various 

horsepower categories.

The only exception to this was that some states added in data for sailboats. The sailboat 

populations were split among two of the default categories. In addition, New Hampshire 

provided their own revised population file. Their population data for New Hampshire was 

provided by the New Hampshire DMV and is not from NMMA.

AMEC then used the national growth factors supplied in the default NMIM/NONROAD 

model to estimate populations for each year. Each horsepower/population category in the 

2007 population file was grown to either 2017 or 2020 using the ratio between the 2005 
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and 2015 growth factors (to represent growth between 2007 and 2017) and between the 

2005 and 2025 growth factors (to represent growth between 2007 and 2020). Those ratios 

were used to grow the 2007 population to 2017 and 2020 respectively. The only exception 

to this was Pennsylvania. Pennsylvania presented data indicating that there was little 

growth expected during the time periods that were considered and thus maintained the 

2007 population estimates for both 2017 and 2020. 

Pennsylvania presented information showing from historical data that indicated a 

downward trend in the overall motorized pleasure craft population in 6 of the last 9 years. 

The data also indicated that the population was essentially unchanged in the last three years 

due to an adverse economic environment. Populations of all motorized pleasure craft in 

Pennsylvania as tracked by the Pennsylvania Fish and Boat Commission showed nearly a 6 

percent decline from 2001 to 2007 or an average annual decline of 1.0 percent over that 

period. Pleasure craft populations remained nearly unchanged from 2008 to 2010. 

As a consequence, they forecaste zero percent growth for pleasure craft is from 2007 to 

2017 and 2007 to 2020. The types of pleasure craft affected by this growth rate are:

2282005010, 2-stroke outboard, 

2282005015, 2-stroke personal water craft,

2282010005, 4-stroke inboard/sterndrive, 

2282020005, diesel inboard/sterndrive, and 

2282020010, diesel outboards

6.7 NMIM/NONROAD GROWTH AND CONTROL INFORMATION

In estimating future year emissions, the NMIM/NONROAD model includes growth and 

scrappage rates for equipment in addition to a variety of control programs. It is not 

possible separate out the future year emissions due to “growth only” or “control only” in a 

single run. That is, the model run provides a single future year estimate that is a “growth 

and control” scenario.

The growth data used in the NMIM/NONROAD model is documented in a USEPA report 

(USEPA 2004c). The GROWTH packet of the NONROAD model cross-references each 

SCC to a growth indicator code. The indicator code is an arbitrary code that identifies an 

actual predicted value such as human population or employment that is used to estimate 

the future year equipment population. The GROWTH packet also defines the scrappage 

curves used to estimate the future year model year distribution.
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The NMIM/NONROAD model also accounts for all USEPA emission standards for 

nonroad equipment. There are mulitiple standards that vary by equipment type, rated 

power, model year, and pollutatant. Exhibit 6.1 is a summary of the emission control 

programs accounted for in the NMIM/NONROAD model. A complete summary of the 

nonroad equipment emission standards can be found on the USEPA nonroad emission 

standards reference guide website (USEPA 2011). 

Exhibit 6.1 Control Programs Included in the NMIM/NONROAD Model

Regulation Description

Control of Air Pollution; 

Determination of Significance for 

Nonroad Sources and Emission 

Standards for New Nonroad 

Compression Ignition Engines At or 

Above 37 Kilowatts

59 FR 31036

June 17, 1994

This rule establishes Tier 1 exhaust emission standards for 

HC, NOx, CO, and PM for nonroad compression-ignition 

(CI) engines ≥37kW (≥50hp). Marine engines are not 

included in this rule. The start dates and pollutants 

affected vary by hp category as follows:

50-100 hp: Tier 1,1998; NOx only

100-175 hp: Tier 1, 1997; NOx only

175-750 hp: Tier 1, 1996; HC, CO, NOx, PM

>750 hp: Tier 1, 2000; HC, CO, NOx, PM

Emissions for New Nonroad SparkIgnition Engines At or Below 19 

Kilowatts; Final Rule

60 FR 34581

July 3, 1995

This rule establishes Phase 1 exhaust emission standards 

for HC, NOx, and CO for nonroad spark-ignition engines 

≤19kW (≤25hp). This rule includes both handheld (HH) 

and nonhandheld (NHH) engines. The Phase 1 standards 

become effective in 1997 for :

 Class I NHH engines (<225cc), 

 Class II NHH engines (≥225cc), 

 Class III HH engines (<20cc), and 

 Class IV HH engines (≥20cc and <50cc). 

The Phase 1 standards become effective in 1998 for:

 Class V HH engines (≥50cc) 

Final Rule for New Gasoline SparkIgnition Marine Engines; Exemptions 

for New Nonroad CompressionIgnition Engines at or Above 37 

Kilowatts and New Nonroad SparkIgnition Engines at or Below 19 

Kilowatts

61 FR 52088

October 4, 1996

This rule establishes exhaust emission standards for 

HC+NOx for personal watercraft and outboard (PWC/OB) 

marine SI engines. The standards are phased in from 

1998-2006.

Control of Emissions of Air Pollution 

From Nonroad Diesel Engines

63 FR 56967

October 23, 1998

This final rule sets Tier 1 standards for engines under 50 

hp, phasing in from 1999 to 2000. It also phases in more 

stringent Tier 2 standards for all engine sizes from 2001 to 

2006, and yet more stringent Tier 3 standards for engines 

rated over 50 hp from 2006 to 2008. The Tier 2 standards 

apply to NMHC+NOx, CO, and PM, whereas the Tier 3 

standards apply to NMHC+NOx and CO. The start dates 

by hp category and tier are as follows:
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Regulation Description

 hp<25: Tier 1,2000; Tier 2, 2005; no Tier 3

 25-50 hp: Tier 1, 1999; Tier 2, 2004; no Tier 3

 50-100 hp: Tier 2, 2004; Tier 3, 2008

 100-175 hp: Tier 2, 2003; Tier 3, 2007

 175-300 hp: Tier 2, 2003; Tier 3, 2006

 300-600 hp: Tier 2, 2001, Tier 3, 2006

 600-750 hp: Tier 2, 2002; Tier 3, 2006

 >750 hp: Tier 2, 2006, no Tier 3

This rule does not apply to marine diesel engines above 50 

hp.

Phase 2: Emission Standards for 

New Nonroad Nonhandheld Spark 

Ignition Engines At or Below 19 

Kilowatts

64 FR 15207

March 30, 1999

This rule establishes Phase 2 exhaust emission standards 

for HC+NOx for nonroad nonhandheld (NHH) spark-ignition 

engines ≤19kW (≤25hp). The Phase 2 standards for Class 

I NHH engines (<225cc) become effective on August 1, 

2007 (or August 1, 2003 for any engine initially produced 

on or after that date). The Phase 2 standards for Class II 

NHH engines (≥225cc) are phased in from 2001-2005.

Phase 2: Emission Standards for 

New Nonroad Spark-Ignition 

Handheld Engines At or Below 19 

Kilowatts and Minor Amendments to 

Emission Requirements Applicable 

to Small Spark-Ignition Engines and 

Marine Spark-Ignition Engines; Final 

Rule

65 FR 24268

April 25, 2000

This rule establishes Phase 2 exhaust emission standards 

for HC+NOx for nonroad handheld (HH) spark-ignition 

engines ≤19kW (≤25hp). The Phase 2 standards are 

phased in from 2002-2005 for Class III and Class IV 

engines and are phased in from 2004-2007 for Class V 

engines.

Control of Emissions From Nonroad 

Large Spark-Ignition Engines and 

Recreational Engines (Marine and 

Land-Based); Final Rule

67 FR 68241

November 8, 2002

This rule establishes exhaust and evaporative standards 

for several nonroad categories: 

1) Two tiers of emission standards are established for large 

spark-ignition engines over 19 kW. Tier 1 includes exhaust 

standards for HC+NOx and CO and is phased in from 

2004-2006. Tier 2 becomes effective in 2007 and includes 

exhaust standards for HC+NOx and CO as well as 

evaporative controls affecting fuel line permeation, diurnal 

emissions and running loss emissions.

2) Exhaust and evaporative emission standards are 

established for recreational vehicles, which include 

snowmobiles, off-highway motorcycles, and all-terrain 

vehicles (ATVs). For snowmobiles, HC and CO exhaust 

standards are phased-in from 2006-2012. For off-highway 

motorcycles, HC+NOx and CO exhaust emission 

standards are phased in from 2006-2007. For ATVs, 

HC+NOx and CO exhaust emission standards are phased 

in from 2006-2007. Evaporative emission standards for 

fuel tank and hose permeation apply to all recreational 

vehicles beginning in 2008.

3) Exhaust emission standards for HC+NOx, CO, and PM 

for recreational marine diesel engines over 50 hp begin in 

2006-2009, depending on the engine displacement. These 

are “Tier 2” equivalent standards.
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Regulation Description

Control of Emissions of Air Pollution 

From Nonroad Diesel Engines and 

Fuel; Final Rule (Clean Air Nonroad 

Diesel Rule – Tier 4)

69 FR 38958

June 29, 2004

This final rule sets Tier 4 exhaust standards for CI engines 

covering all hp categories (except marine and 

locomotives), and also regulates nonroad diesel fuel sulfur 

content.

1) The Tier 4 start dates and pollutants affected vary by hp 

and tier as follows:

 hp<25: 2008, PM only

 25-50 hp: Tier 4 transitional, 2008, PM only; 

 Tier 4 final, 2013, NMHC+NOx and PM

 50-75 hp: Tier 4 transitional, 2008; PM only; 

 Tier 4 final, 2013, NMHC+NOx and PM

 75-175 hp: Tier 4 transitional, 2012, HC, NOx, and PM; 

 Tier 4 final, 2014, HC,NOx,PM

 175-750 hp:Tier 4 transitional, 2011, HC, NOx, and PM;

 Tier 4 final, 2014, HC,NOx,PM

 >750 hp: Tier 4 transitional, 2011, HC, NOx, and PM; 

 Tier 4 final, 2015, HC,NOx,PM

2) This rule will reduce nonroad diesel fuel sulfur levels in 

two steps. First, starting in 2007, fuel sulfur levels in 

nonroad diesel fuel will be limited to a maximum of 500 

ppm, the same as for current highway diesel fuel. Second, 

starting in 2010, fuel sulfur levels in most nonroad diesel 

fuel will be reduced to 15 ppm.

Control of Emissions From Nonroad 

Spark-Ignition Engines and 

Equipment; Final Rule (Bond Rule)

73 FR 59034

October 8, 2008

This rule establishes exhaust and evaporative standards 

for small SI engines and marine SI engines:

1) Phase 3 HC+NOx exhaust emission standards are 

established for Class I NHH engines starting in 2012 and 

for Class II NHH engines starting in 2011. There are no 

new exhaust emission standards for handheld engines. 

New evaporative standards are adopted for both handheld 

and nonhandheld equipment. The new evaporative 

standards control fuel tank permeation, fuel hose 

permeation, and diffusion losses. The evaporative 

standards begin in 2012 for Class I NHH engines and 2011 

for Class II NHH engines. For handheld engines, the 

evaporative standards are phased-in from 2012-2016.

2) More stringent HC+NOx and CO standards are 

established for marine SI PWC/OB engines beginning in 

2010. In addition, new exhaust HC+NOx and CO 

standards are established for sterndrive and inboard (SD/I) 

marine SI engines also beginning in 2010. High 

performance SD/I engines are subject to separate 

HC+NOx and CO exhaust standards that are phased-in 

from 2010-2011. New evaporative standards were also 

adopted for all marine SI engines that control fuel hose 

permeation, diurnal emissions, and fuel tank permeation 

emissions. The hose permeation, diurnal, and tank 

permeation standards take effect in 2009, 2010, and 2011.

Source: USEPA 2010e 
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7.0 NONROAD MAR SOURCE CATEGORIES

The USEPA’s NONROAD model does not estimate emissions for three nonroad source 

categories: commercial marine vessel, aircraft, and railroad locomotives. The emission 

projection methodology and data sources for these three categories (collectively referred to 

as marine, airport, railroad {or MAR}) are discussed in this section. The data used to 

calculate the growth and control factors for MAR sources are included in Appendix L.

7.1 COMMERCIAL MARINE VESSELS

For the purpose of emission calculations, marine vessel engines are divided into three 

categories based on displacement (swept volume) per cylinder. Category 1 and Category 2 

marine diesel engines typically range in size from about 500 to 8,000 kW (700 to 11,000 

hp). These engines are used to provide propulsion power on many kinds of vessels 

including tugboats, pushboats, supply vessels, fishing vessels, and other commercial 

vessels in and around ports. They are also used as stand-alone generators for auxiliary 

electrical power on vessels. Category 3 marine diesel engines typically range in size from 

2,500 to 70,000 kW (3,000 to 100,000 hp). These are very large marine diesel engines used 

for propulsion power on ocean-going vessels such as container ships, oil tankers, bulk 

carriers, and cruise ships.

The majority of marine vessels are powered by diesel engines that are either fueled with 

distillate or residual fuel oil blends. For the purpose of emission inventories, USEPA has 

assumed that Category 3 vessels primarily use residual blends while Category 1 and 2 

vessels typically use distillate fuels. 

EPA developed national emission inventories for Category 1 and 2 vessels and Category 3 

vessels for calendar years 2002 through 2040 as part of its effort to develop emission 

standards for these vessels. The methodologies used to develop the emission projections

(for both a baseline and controlled scenario) are documented in a regulatory impact 

assessment (USEPA 2008c). We used the USEPA data and methodologies from these 

RIAs to develop separate growth and control factors for Category 1 and 2 vessels (diesel) 

and Category 3 vessels (residual). 

7.1.1 CMV Diesel Growth Factors

For Category 1 and 2 diesel vessels, USEPA used projection data for domestic shipping 

from the AEO2006 (EIA 2006). The annual growth rate reported in the RIA is 0.9%. 

More recent growth data for domestic shipping is available in the AEO2010 (EIA 2010). 

Since Category 1 and 2 vessels primarily accounts for activity data for ships that carry 

domestic cargo, we decided to use the recent growth data for domestic shipping available 
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in the AEO2010. We used Table A-7 of the AEO2010 for international shipping to 

calculate the growth factor for 2007-2013 to be 0.975, for 2007-2017 to be 1.003, and for 

2007-2020 to be 1/033. These growth factors were used for for CMV diesel port emissions 

(SCC 22-80-002-100) and CMV diesel underway emissions (SCC 22-80-002-200). 

7.1.2 CMV Diesel Control Factors

In developing their emission projections, USEPA developed two scenarios that accounted 

for both the 2004 nonroad diesel rule and the 2008 diesel marine vessel rule: 

The USEPA’s baseline (pre-control) inventory accounted for:

1. the 0.9 percent annual growth in fuel use, 

2. the impact of existing engine regulations that took effect in 2008, 

3. the 2004 Clean Air Nonroad Diesel Rule that will decrease the allowable 

levels of sulfur in fuel beginning in 2012, and 

4. fleet turnover. 

The USEPA’s controlled inventory accounted for:

1. the 0.9 percent annual growth in fuel use;

2. the reductions included in the baseline inventory, and the reductions from

USEPA’s 2008 rule Final Locomotive-Marine rule for Tier 3 and 4 engines; 

and 

3. The 2008 final rule that includes the first-ever national emission standards 

for existing marine diesel engines, applying to engines larger than 600kW 

when they are remanufactured. The rule also sets Tier 3 emissions 

standards for newly-built engines that are phasing in from 2009. Finally, 

the rule establishes Tier 4 standards for newly-built commercial marine 

diesel engines above 600kW, phasing in beginning in 2014.

To calculate a control factor that accounts for reductions included in the USEPA controlled 

inventory, it was necessary to first calculate a “growth only” scenario applying USEPA’s 

0.9 percent annual growth rate to the 2006 base emissions. Once the growth rate was 

applied, then a control factor for each pollutant was calculated by dividing the future year 

controlled emissions by the future year “growth only” emissions. Exhibit 7.1 shows the 

control factors for 2017 and 2020 for diesel commercial marine vessels. 
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Exhibit 7.1 CMV Diesel Control Factors by Year and Pollutant

Year CO NOx PM10 PM2.5 SO2 VOC

2013 0.885 0.787 0.747 0.747 0.464 0.871

2017 0.830 0.642 0.550 0.550 0.076 0.708

2020 0.801 0.537 0.460 0.460 0.032 0.586

7.1.3 CMV Residual Oil Growth Factors

For Category 3 residual oil vessels, data from an USEPA-sponsored study was used to 

develop an annualized growth factor of 4.5 percent for the region. A few states considered 

the growth rate to be extremely high and not reflective of recent economic conditions. 

Since USEPA’s Category 3 vessel inventory is primarily based on activity data for ships 

that carry foreign cargo, we decided to use the recent growth data for international 

shipping available in the AEO2010. We used data from Table A-7 of the AEO2010 for 

international shipping to calculate the growth factor for 2007-2013 to be 0.940, for 2007-

2017 to be 0.946, and for 2007-2020 to be 0.950. These growth factors were used for 

CMV residual oil port emissions (SCC 22-80-003-100) and CMV residual oil underway 

emissions (SCC 22-80-003-200).

7.1.4 CMV Residual Oil Control Factors

On December 22nd, 2009, USEPA announced final emission standards under the Clean 

Air Act for new marine diesel engines with per-cylinder displacement at or above 30 liters 

(called Category 3 marine diesel engines) installed on U.S.-flagged vessels. The final 

engine standards are equivalent to those adopted in the amendments to Annex VI to the 

International Convention for the Prevention of Pollution from Ships (a treaty called 

"MARPOL"). The emission standards apply in two stages: near-term standards for newlybuilt engines will apply beginning in 2011, and long-term standards requiring an 80 

percent reduction in NOx will begin in 2016. USEPA also adopted changes to the diesel 

fuel program to allow for the production and sale of diesel fuel with no more than 1,000 

ppm sulfur for use in Category 3 marine vessels. The regulations generally forbid 

production and sale of fuels with more than 1,000 ppm sulfur for use in most U.S. waters, 

unless operators achieve equivalent emission reductions in other ways. 

On March 26, 2010, the International Maritime Organization (IMO) officially designated 

waters off North American coasts as an emissions control area (ECA) in which stringent 

international emission standards will apply to ships. In practice, implementation of the 

ECA means that ships entering the designated area would need to use compliant fuel for 

the duration of their voyage that is within that area, including time in port and voyages

whose routes pass through the area without calling on a port. The North American ECA 
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includes waters adjacent the Atlantic extending up to 200 nautical miles from east coast of 

the United States. The quality of fuel that complies with the ECA standard will change 

over time. From the effective date in 2012 until 2015, fuel used by vessels operating in 

designated areas cannot exceed 1.0 percent sulfur (10,000 ppm). Beginning in 2015, fuel 

used by vessels operating in these areas cannot exceed 0.1 percent sulfur (1000 ppm). 

Beginning in 2016, NOx aftertreatment requirements become applicable.

To calculate a control factor that accounted for reductions included in the USEPA 

controlled inventory, it was necessary to first calculate a “growth only” scenario applying 

USEPA’s 4.5 percent annual growth rate to the 2006 base emissions. Once the growth rate 

was applied, then a control factor for each pollutant was calculated by dividing the future 

year controlled emissions by the future year “growth only” emissions. 

Exhibit 7.2 shows the control factors for 2017 and 2020 for residual oil commercial marine 

vessels. 

Exhibit 7.2 CMV Residual Oil Control Factors by Year and Pollutant

Year CO NOx PM10 PM2.5 SO2 VOC

2013 1.000 0.736 0.353 0.353 0.270 1.000

2017 1.000 0.654 0.216 0.216 0.120 1.000

2020 1.000 0.597 0.137 0.137 0.036 1.000

7.1.5 Military Vessels Growth and Control Factors

Virginia reported emissions for military vessels, but did not distinguish between diesel or 

residual fuels. We assumed that there would be “no growth” for military vessel activity 

and emissions in Virginia would remain at 2007 levels in 2017 and 2020. Virginia was the 

only state to report emission from military vessels.

7.2 AIRCRAFT

Aircraft emissions in the 2007 MANE-VU+VA inventory are available on either a countyby-county or airport-by-airport basis for six types of aircraft operations:

Air carrier operations represent landings and take-offs (LTOs) of commercial 

aircraft with seating capacity of more than 60 seats;

Commuter/air taxi operations are one category. Commuter operations include 

LTOs by aircraft with 60 or fewer seats that transport regional passengers on 
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scheduled commercial flights. Air taxi operations include LTOs by aircraft with 60 

or fewer seats conducted on non-scheduled or for-hire flights;

General aviation represents all civil aviation LTOs not classified as commercial;

Military operations represent LTOs by military aircraft; 

Ground Support Equipment (GSE) typically includes aircraft refueling and baggage 

handling vehicles and equipment, aircraft towing vehicles, and passenger buses; 

and 

Auxiliary power units (APUs) provide power to start the main engines and run the 

heating, cooling, and ventilation systems prior to starting the main engines.

7.2.1 Aircraft Growth Factors

Aircraft operations were projected to future years by applying activity growth using data 

on itinerant (ITN) operations at airports as reported in the Federal Aviation 

Administration’s (FAA) Terminal Area Forecast (TAF) System for 2009-2030 (FAA 

2010). The ITN operations are defined as aircraft take-offs or landings. This information is 

available for approximately 3300 individual airports. Actual LTOs are reported for 2007 

and projected LTOs are provided for all years up to 2030.

We aggregated and applied this information at the county level for the four operation 

types: commercial, general, air taxi, military. We computed growth factors for each 

operation type by dividing future-year ITN by 2007-year ITN. We assigned factors to 

inventory SCCs based on the operation type, as shown in Exhibit 7.3.

Exhibit 7.3 Crosswalk between SCC and FAA Operations Type 

SCC SCC Description FAA Operation Type Used for 

Growth Factor

2265008005 Airport Ground Support Equipment, 4-Stroke Gas Total Itinerant Operations

2267008005 Airport Ground Support Equipment, LPG Total Itinerant Operations

2268008005 Airport Ground Support Equipment, CNG Total Itinerant Operations

2270008000 Airport Ground Support Equipment, Diesel Total Itinerant Operations

2270008005 Airport Ground Support Equipment, Diesel Total Itinerant Operations

2275001000 Aircraft /Military Aircraft /Total Itinerant Military Operations

2275020000 Aircraft /Commercial Aircraft /Total: All Types Itinerant Air Carrier Operations

2275050000 Aircraft /General Aviation /Total Itinerant General Aviation Operations

2275050011 Aircraft /General Aviation /Piston Itinerant General Aviation Operations

2275050012 Aircraft /General Aviation /Turbine Itinerant General Aviation Operations
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SCC SCC Description FAA Operation Type Used for 

Growth Factor

2275060000 Aircraft /Air Taxi /Total Itinerant Air Taxi Operations

2275060011 Aircraft /Air Taxi /Piston Itinerant Air Taxi Operations

2275060012 Aircraft /Air Taxi /Turbine Itinerant Air Taxi Operations

2275070000 Aircraft /Aircraft Auxiliary Power Units /Total Total Itinerant Operations

Exhibit 7.4 summarizes the region-wide growth factors by FAA operation type. The 

growth factor for individual airports/counties may deviate substantially from these regionwide growth factors.

Exhibit 7.4 Region-wide Growth Factors from 2007 by FAA Operations Type

7.2.2 Aircraft Control Factors

The NOx aircraft engine emissions standards adopted by USEPA in November 2005 

(USEPA 2005b) were reviewed. The standards are equivalent to the NOx emission 

standards (adopted in 1999 for implementation beginning in 2004) of the United Nations 

International Civil Aviation Organization (ICAO), and will bring the United States aircraft 

standards into alignment with the international standards. The standards apply to new 

aircraft engines used on commercial aircraft including small regional jets, single-aisle and 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 86

twin-aisle aircraft, and 747s and larger aircraft. The standards also apply to general 

aviation and military aircraft, which sometimes use commercial engines. For example, 

small regional jet engines are used in executive general aviation aircraft, and larger 

commercial aircraft engines may be used in military transport aircraft. 

Nearly all previously certified or in-production engine models currently meet or perform 

better than the standards USEPA adopted in the November 2005 rule. In addition, 

manufacturers have already been developing improved technology in response to the 

ICAO standards. According to USEPA’s recent analysis for the proposed transport rule 

(USEPA 2010a), this rule is expected to reduce NOx emissions by approximately 2 percent 

in 2015 and 3 percent in 2020. Because of the relatively small amount of NOx reductions, 

our aircraft emission projections do not account for this control program.

EPA has also issued an Advance Notice of Proposed Rulemaking (ANPR) on lead 

emissions from piston-engine aircraft using leaded aviation gasoline (USEPA 2010d). 

However, this rule has not yet been adopted and co-benefits for criteria air pollutants are 

likely to be small. Therefore, the effects of this rule were not included in the future-year 

emissions projections.

7.3 RAILROAD EQUIPMENT

Railroad locomotive engine emissions in the 2007 MARAMA inventory are classified into 

the following categories:

Class I line haul locomotives are operated by large freight railroad companies and 

are used to power freight train operations over long distances (SCC 22-85-002-

006);

Class II/III line haul locomotives are operated by smaller freight railroad 

companies and are used to power freight train operations over long distances (SCC 

22-85-002-007);

Inter-city passenger train locomotives are operated primarily by Amtrak to provide 

inter-city passenger transport (SCC 22-85-002-008);

Independent commuter rail systems operate locomotives provide passenger 

transport within a metropolitan area (SCC 22-85-002-009); and 

Yard/switch locomotives are used in freight yards to assemble and disassemble 

trains, or for short hauls of trains that are made up of only a few cars (SCC 22-85-

002-010).
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7.3.1 Railroad Growth Factors

In March 2008, USEPA finalized a three part program that will dramatically reduce 

emissions from diesel locomotives of all types -- line-haul, switch, and passenger rail. As 

part of this work USEPA developed a national emission inventory for calendar years 2002 

through 2040. Emission projections methodologies for a baseline and controlled scenario 

were developed and documented (USEPA 2008c). USEPA used projection data from the 

AEO2006 (EIA 2006). Table A-7 of AEO2006 showed that freight rail energy use will 

grow 1.6 percent annually. 

More recent growth data is available in the AEO2010 which was published in May 2010. 

There are separate projections for passenger rail and freight rail energy use. For the 

MANE VU+VA inventory we relied on the more recent AEO2010 growth projections.

Passenger rail data from AEO2010 Table A-7 was used to calculate the growth factor for 

2007-2013 to be 1.046, for 2007-2017 to be 1.121, and for 2007-2020 to be 1.171. These 

growth factors were applied to inter-city passenger train locomotives (SCC 22-85-002-

008) and independent commuter rail systems (SCC 22-85-002-009). 

For freight rail, the data from AEO2010 Table A-7 was used to calculate the growth factor 

for 2007-2013 to be 0.969, for 2007-2017 to be 1.018, and for 2007-2020 to be 1.053. We 

used the freight rail annual growth factors for Class I line haul (SCC 22-85-002-006), 

Class II/III line haul (SCC 22-85-002-007), and yard switch (SCC 22-85-002-010) 

locomotives. 

7.3.2 Railroad Control Factors

USEPA developed two scenarios that accounted for both the 2004 nonroad diesel rule and 

the 2008 diesel locomotive rule: 

The USEPA baseline (pre-control) inventory accounted for 

1. AEO2006 annual growth in fuel use, 

2. The impact of existing regulations for Tier 0, 1, and 2 locomotive engines 

that take effect in 2008, 

3. The 2004 Clean Air Nonroad Diesel Rule that will decrease allowable 

levels of sulfur in locomotives fuel beginning in 2012, and 

4. Fleet turnover.

The USEPA controlled inventory accounted for 

1. AEO2006 annual growth in fuel use, 

2. Reductions included in the baseline inventory, and 
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3. Reductions from USEPA’s 2008 rule Final Locomotive-Marine rule for 

Tier 3 and 4 engines. This rule lowered diesel sulfur content and tightened 

emission standards for existing and new locomotives. 

4. Voluntary retrofits under the National Clean Diesel Campaign are not 

included in our projections.

To calculate a factor that accounted for reductions included in the USEPA controlled 

inventory, it was necessary to first calculate a “growth only” scenario applying USEPA’s 

1.6% annual growth rate to the 2006 base emissions. Once the growth rate was applied, 

then a control factor for each pollutant was calculated by dividing the future year 

controlled emissions by the future year “growth only” emissions. 

Exhibit 7.5 shows the control factors for 2017 and 2020 for the five locomotive 

classifications and pollutants. 

Exhibit 7.5 Rail Control Factors by Year, Pollutant, and SCC

Year NOx PM10 PM2.5 HC CO VOC SO2

SCC 22-85-002-006 Line Haul Class I Operations

2017 0.633 0.449 0.449 0.480 1.000 0.480 0.003

2020 0.547 0.364 0.364 0.382 1.000 0.382 0.003

SCC 22-85-002-007 Line Haul Class II / III Operations

2017 0.960 0.791 0.791 1.000 1.000 1.000 0.003

2020 0.920 0.752 0.752 1.000 1.000 1.000 0.003

SCC 22-85-002-008 Inter-City Passenger

2017 0.421 0.402 0.402 0.437 0.917 0.437 0.003

2020 0.340 0.294 0.294 0.290 0.895 0.290 0.003

SCC 22-85-002-009 Commuter Rail

2017 0.421 0.402 0.402 0.437 0.917 0.437 0.003

2020 0.340 0.294 0.294 0.290 0.895 0.290 0.003

SCC 22-85-002-010 Yard / Switch

2017 0.843 0.712 0.712 0.809 1.000 0.809 0.003

2020 0.771 0.650 0.650 0.726 1.000 0.726 0.003
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8.0 SUMMARY OF PROJECTED EMISSIONS

8.1 AREA SOURCE PROJECTED EMISSIONS

Exhibits 8.1 to 8.7 summarize the 2007 and projected future year area source emissions by 

state for each criteria air pollutant. Seven values are listed for each pollutant:

2007 emissions

2017 projected emissions with growth only (GO)

2017 projected emissions with growth and existing controls (GC)

2017 projected emissions with growth, existing and potential new OTC controls (GX)

2020 projected emissions with growth only (GO)

2020 projected emissions with growth and existing controls (GC)

2020 projected emissions with growth, existing and potential new OTC controls (GX)

Detailed summaries by County and SCC are provided on MARAMA’s ftp site.

CO emissions in most states decline between 2007 and 2020, primarily due to decreases in 

residential wood combustion emissions resulting from the turnover to NSPS-compliant 

wood stoves. The two exceptions are DC and NY, where there is a slight increase in CO 

emissions from 2007 to 2020. There are no additional reductions expected from potential 

new OTC control measures. 

NH3 emissions are projected to increase in most states between 2007 and 2020. This is 

due primarily to the growth predicted for fertilizer application on cropland and certain 

livestock waste products. There are no additional reductions expected from any existing 

control program or any potential new OTC control measures. 

Under the “growth only” scenario, NOx emissions are projected to decline by about 5 

percent between 2007 and 2017 due to AEO fuel use projections that generally show 

decreases in residential, commercial, and industrial fuel consumption. Under the “existing 

controls” scenario, NOx emissions in 2017 are projected to decrease by about 6.7 percent 

regionwide from 2007 levels due primarily to RICE MACT controls. Under the “potential 

new OTC controls” scenario, NOx emissions are projected to decrease by about 17 percent 

between 2007 and 2017 due to potential new controls on ICI boilers and new, small, 

natural gas-fired units. 

PM10-PRI emissions are projected to increase slightly in all states between 2007 and 2017. 

Reentrained road dust on paved roads is a large source of PM10-PRI emissions and is 

directly proportional to the projected increases in VMT on paved roads. These increases 

from paved road dust are somewhat offset by decreases resulting from the turnover to 

NSPS-compliant wood stoves and the AEO fuel use projections that generally show 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 90

decreases in residential, commercial, and industrial fuel consumption, especially for coal 

and oil. There are no additional reductions expected from potential new OTC control 

measures.

PM25-PRI emissions are projected to increase slightly from 2007 to 2020. Increases from 

paved road dust are somewhat offset by decreases resulting from the turnover to NSPScompliant wood stoves and the AEO fuel use projections that generally show decreases in 

residential, commercial, and industrial fuel consumption, especially for coal and oil. There 

are no additional reductions expected from potential new OTC control measures.

Under the “growth only” scenario, SO2 emissions are projected to decline by about 16

percent between 2007 and 2017 due to AEO fuel use projections that generally show 

decreases in residential, commercial, and industrial fuel consumption, especially for coal 

and oil. Under the “existing controls” scenario, SO2 emissions in 2017 are projected to 

decrease by about 42 percent regionwide from 2007 levels due primarily to low sulfur fuel 

oil limits in MD, NJ, and NY. Under the “potential new OTC controls” scenario, SO2

emissions are projected to decrease by about 68 percent between 2007 and 2017 due to the 

potential implementation of low sulfur fuel oil limits in other MANE-VU states. 

Under the “growth only” scenario, VOC emissions are projected to decrease slightly due to 

the turnover to NSPS-compliant wood stoves and the turnover over of vehicles equipped 

with on-board vapor recovery canisters. Under the “existing controls” scenario, VOC 

emissions in 2017 are projected to decrease by about 10 percent regionwide from 2007 

levels due implementation of various OTC control measures in multiple states. Under the 

“potential new OTC controls” scenario, VOC emissions are projected to decrease by about 

15 percent between 2007 and 2017 due to the continued implementation of both OTC 

control measures. 
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Exhibit 8.1 2007 and Projected Future Year Area Source CO Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 41,496 38,245 38,161 38,161 37,352 37,266 37,266

DE 8,266 7,961 7,881 7,881 7,857 7,776 7,776

DC 5,488 5,319 5,247 5,247 5,274 5,200 5,200

ME 50,496 47,290 47,266 47,266 46,359 46,337 46,337

MD 74,188 72,896 72,631 72,631 72,501 72,231 72,231

MA 79,226 75,912 75,482 75,482 75,073 74,626 74,626

NH 39,677 37,470 37,405 37,405 36,883 36,816 36,816

NJ 77,687 74,444 73,562 73,562 73,298 72,406 72,406

NY 205,055 218,875 218,374 218,374 223,510 223,021 223,021

PA 217,079 205,020 203,489 203,489 202,084 200,507 200,507

RI 15,419 14,391 14,308 14,308 14,097 14,011 14,011

VT 51,109 46,595 46,551 46,551 45,288 45,243 45,243

VA 132,098 129,923 129,479 129,479 129,390 128,937 128,937

997,285 974,342 969,836 969,836 968,966 964,377 964,377 
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Exhibit 8.2 2007 and Projected Future Year Area Source NH3 Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 4,421 4,451 4,451 4,451 4,476 4,476 4,476

DE 12,382 15,233 15,233 15,233 15,924 15,924 15,924

DC 183 188 188 188 191 191 191

ME 5,736 6,203 6,203 6,203 6,337 6,337 6,337

MD 26,006 26,081 26,081 26,081 26,102 26,102 26,102

MA 13,791 13,913 13,913 13,913 13,996 13,996 13,996

NH 1,500 1,528 1,528 1,528 1,534 1,534 1,534

NJ 15,736 16,375 16,375 16,375 16,593 16,593 16,593

NY 45,693 46,221 46,221 46,221 46,368 46,368 46,368

PA 72,569 77,383 77,383 77,383 78,550 78,550 78,550

RI 625 629 629 629 636 636 636

VT 8,013 8,013 8,013 8,013 8,013 8,013 8,013

VA 43,394 45,862 45,862 45,862 46,434 46,434 46,434

250,049 262,079 262,079 262,079 265,152 265,152 265,152 
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Exhibit 8.3 2007 and Projected Future Year Area Source NOx Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 12,421 11,278 11,101 9,747 11,232 11,049 9,560

DE 2,237 2,292 2,210 1,796 2,300 2,218 1,768

DC 1,547 1,620 1,560 1,318 1,654 1,592 1,325

ME 6,656 5,960 5,960 5,734 5,851 5,851 5,633

MD 10,312 11,148 10,948 9,887 11,389 11,185 9,978

MA 20,252 19,316 18,984 16,730 19,498 19,151 16,638

NH 4,737 4,196 4,152 3,761 4,156 4,111 3,699

NJ 24,175 24,662 23,331 22,727 24,685 23,339 22,310

NY 72,053 63,961 63,711 55,057 63,337 63,082 53,872

PA 47,545 47,179 45,925 37,636 47,613 46,318 37,392

RI 3,469 3,370 3,301 2,830 3,400 3,329 2,788

VT 3,996 3,667 3,641 3,305 3,672 3,645 3,302

VA 19,056 18,704 18,411 18,411 18,821 18,520 18,520

228,457 217,352 213,235 188,939 217,608 213,387 186,784 
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Exhibit 8.4 2007 and Projected Future Year Area Source PM10-PRI Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 30,577 31,061 31,052 31,052 31,224 31,214 31,214

DE 10,499 11,169 11,168 11,168 11,675 11,675 11,675

DC 4,873 5,078 5,077 5,077 5,141 5,141 5,141

ME 54,445 54,438 54,431 54,431 54,995 54,988 54,988

MD 72,454 78,559 78,555 78,555 80,345 80,340 80,340

MA 148,756 148,471 148,459 148,459 148,577 148,564 148,564

NH 27,742 28,916 28,912 28,912 29,420 29,416 29,416

NJ 39,140 41,202 41,189 41,189 42,104 42,090 42,090

NY 272,674 291,578 291,476 291,476 297,738 297,639 297,639

PA 287,998 295,026 295,006 295,006 298,020 298,001 298,001

RI 11,361 12,151 12,150 12,150 12,395 12,394 12,394

VT 47,993 47,675 47,671 47,671 47,823 47,819 47,819

VA 183,341 188,240 188,211 188,211 190,126 190,097 190,097

1,191,853 1,233,566 1,233,356 1,233,356 1,249,581 1,249,377 1,249,377 
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Exhibit 8.5 2007 and Projected Future Year Area Source PM25-PRI Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 10,606 10,298 10,290 10,290 10,225 10,217 10,217

DE 3,031 3,131 3,131 3,131 3,212 3,212 3,212

DC 1,542 1,560 1,560 1,560 1,567 1,566 1,566

ME 12,526 12,068 12,062 12,062 12,005 11,999 11,999

MD 19,789 20,888 20,884 20,884 21,206 21,201 21,201

MA 30,438 29,955 29,945 29,945 29,893 29,883 29,883

NH 8,623 8,602 8,598 8,598 8,637 8,633 8,633

NJ 18,299 18,453 18,441 18,441 18,579 18,568 18,568

NY 63,906 68,492 68,408 68,408 70,080 70,000 70,000

PA 73,514 73,070 73,054 73,054 73,243 73,227 73,227

RI 3,896 3,923 3,922 3,922 3,937 3,936 3,936

VT 13,106 12,596 12,593 12,593 12,520 12,517 12,517

VA 44,102 44,872 44,851 44,851 45,237 45,216 45,216

303,378 307,908 307,739 307,739 310,340 310,175 310,175 
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Exhibit 8.6 2007 and Projected Future Year Area Source SO2 Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 16,083 12,943 12,943 3,325 12,401 12,401 838

DE 1,144 946 946 107 911 911 106

DC 1,241 995 995 181 953 953 23

ME 9,812 7,870 7,870 1,450 7,609 7,609 200

MD 5,960 6,566 1,674 1,674 6,745 1,704 1,704

MA 19,859 15,996 15,996 4,093 15,357 15,357 1,391

NH 5,283 4,176 4,176 804 3,991 3,991 147

NJ 8,811 7,423 706 706 7,090 704 704

NY 70,044 58,753 11,651 11,651 57,030 11,670 11,670

PA 66,584 55,878 55,878 32,309 55,018 55,018 32,278

RI 3,897 3,222 3,222 1,270 3,108 3,108 491

VT 3,752 3,158 3,158 1,654 3,085 3,085 634

VA 17,098 14,880 14,880 14,880 14,616 14,616 14,616

229,569 192,807 134,097 74,104 187,914 131,127 64,803 
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Exhibit 8.7 2007 and Projected Future Year Area Source VOC Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 57,253 55,386 46,364 43,764 54,857 45,849 43,229

DE 9,482 9,525 8,631 7,910 9,596 8,673 7,930

DC 5,568 5,540 5,324 4,932 5,591 5,369 4,965

ME 31,966 29,957 26,113 25,412 29,422 25,631 24,931

MD 64,429 66,399 57,045 52,018 66,825 57,042 51,901

MA 85,870 82,334 66,211 59,886 81,373 65,306 58,945

NH 22,343 22,117 20,894 17,258 22,041 20,807 17,164

NJ 98,121 97,769 89,972 83,323 97,551 89,699 82,956

NY 195,976 199,975 184,269 173,703 199,522 183,721 173,081

PA 176,781 170,123 164,863 153,166 167,744 162,374 150,596

RI 24,214 22,319 20,292 19,603 21,796 19,750 19,053

VT 14,108 12,516 12,311 10,972 12,127 11,904 10,561

VA 142,218 139,719 135,379 135,379 139,631 135,002 135,002

928,330 913,678 837,668 787,325 908,077 831,128 780,314 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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8.2 NONEGU POINT SOURCE PROJECTED EMISSIONS

Exhibits 8.8 to 8.14 summarize the 2007 and projected future year area source emissions 

by state for each criteria air pollutant. Seven values are listed for each pollutant:

2007 emissions

2017 projected emissions with growth only (GO)

2017 projected emissions with growth and existing controls (GC)

2017 projected emissions with growth, existing and potential new OTC controls (GX)

2020 projected emissions with growth only (GO)

2020 projected emissions with growth and existing controls (GC)

2020 projected emissions with growth, existing and potential new OTC controls (GX)

Detailed summaries by County and SCC are provided on MARAMA’s ftp site.

Regionwide, CO emissions increase slightly between 2007 and 2020. Maryland shows a 

significant decline due to a source closure. Maine, New Hampshire, and Vermont show 

significant increases due to projected increases in nonEGU wood combustion. There are no 

additional reductions expected from potential new OTC control measures.

NH3 emissions are projected to increase slightly between 2007 and 2020. There are no 

additional reductions expected from any existing control program or any potential new 

OTC control measures. 

Under the “growth only” scenario, regional NOx emissions are projected to increase by 

about 12 percent from 2007 to 2017. This is due partially to the projected increases in fuel 

consumption and the addition of ERCs to the inventory. Under the “existing controls” 

scenario, NOx emissions are projected to be about 2 percent lower in 2017 than in 2007 

because of petroleum refinery enforcement settlements; source shutdowns; ICI boiler 

controls in New Hampshire, New Jersey, and New York; and additional controls on glass 

furnace and cement kilns. Under the “potential new OTC controls” scenario, NOx 

emissions are projected to be about 5 percent lower in 2017 than in 2007 because of ICI 

boiler controls in additional states. 

Under the “growth only” scenario, regional PM10-PRI and PM2.5-PRI emissions are 

projected to increase slightly. Under the “existing controls” scenario, PM10-PRI and 

PM2.5-PRI are project to be about 5 percent lower in 2017 than in 2007 due primarily to 

reductions the ICI boiler MACT standard and source closures. There are no additional 

reductions expected from potential new OTC control measures.

Under the “growth only” scenario, regional SO2 emissions are projected to remain 

relatively constant from 2007 to 2017. Under the “existing controls” scenario, SO2 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 99

emissions are projected to be about 5 percent lower in 2017 than in 2007 because of 

petroleum refinery enforcement settlements; source shutdowns; and low sulfur fuel oil 

requirements in Maryland, New Jersey, and New York. Under the “potential new OTC 

controls” scenario, SO2 emissions are projected to be about 8 percent lower in 2017 than 

in 2007 because of low sulfur fuel oil limits in additional states. SO2 emission are 

projected to be about 12 percent lower in 2020 than in 2007 because of additional low 

sulfur fuel oil limits in outer zone states that are projected to take effect in 2018.. 

VOC emissions are projected to increase slightly between 2007 and 2020 under the 

“growth only” scenario due primarily to the inclusion of ERCs in the future year 

inventories. Under the “existing controls” scenario, VOC emissions are projected to be 

less than 1 percent lower in 2017 than in 2007, with reductions resulting from the RICE 

MACT standard and OTC adhesives application rule. Under the “potential new OTC 

controls” scenario, VOC emissions are projected to be about 1.5 percent lower in 2017 

than in 2007 due to the projected implementation of the OTC rule on large storage tanks. 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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Exhibit 8.8 2007 and Projected Future Year NonEGU CO Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 2,583 3,067 3,041 3,041 3,197 3,171 3,171

DE 7,027 7,300 7,271 7,271 7,320 7,292 7,292

DC 301 335 327 327 338 330 330

ME 14,023 20,975 20,941 20,941 21,238 21,204 21,204

MD 77,574 68,273 68,221 68,221 68,323 68,268 68,268

MA 4,592 5,999 5,919 5,919 6,165 6,082 6,082

NH 2,255 4,977 4,975 4,975 5,084 5,081 5,081

NJ 6,907 7,227 7,151 7,151 7,323 7,246 7,246

NY 52,877 54,959 54,646 54,646 55,439 55,115 55,115

PA 80,540 84,178 83,211 83,211 84,799 83,800 83,800

RI 1,051 873 870 870 940 937 937

VT 702 1,242 1,242 1,242 1,294 1,294 1,294

VA 63,079 67,090 65,740 65,740 67,833 66,212 66,212

313,512 326,496 323,556 323,556 329,293 326,031 326,031 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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Exhibit 8.9 2007 and Projected Future Year NonEGU NH3 Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 0 0 0 0 0 0 0

DE 62 63 58 58 63 58 58

DC 0 0 0 0 0 0 0

ME 605 588 585 585 569 566 566

MD 137 137 137 137 137 137 137

MA 365 353 353 353 357 357 357

NH 30 36 36 36 36 36 36

NJ 208 216 216 216 219 219 219

NY 1,064 1,083 1,083 1,083 1,086 1,086 1,086

PA 2,070 2,111 2,111 2,111 2,119 2,119 2,119

RI 16 13 13 13 13 13 13

VT 0 0 0 0 0 0 0

VA 1,618 1,698 1,698 1,698 1,709 1,709 1,709

6,175 6,298 6,290 6,290 6,307 6,300 6,300 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 102

Exhibit 8.10 2007 and Projected Future Year NonEGU NOx Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 6,302 8,949 8,913 8,531 9,336 9,297 8,900

DE 5,122 4,774 3,328 2,861 4,652 3,271 2,796

DC 734 844 779 598 860 792 609

ME 17,050 20,527 20,398 19,272 20,573 20,447 19,332

MD 23,472 28,520 26,322 25,197 28,694 26,496 25,353

MA 12,872 15,011 14,797 13,238 15,525 15,298 13,695

NH 2,687 5,529 3,388 3,277 5,642 3,467 3,356

NJ 13,517 14,880 11,879 11,879 15,155 12,092 12,092

NY 35,583 38,125 27,632 27,632 38,686 28,080 28,080

PA 71,382 76,378 63,904 61,046 77,220 62,606 59,691

RI 950 857 854 720 868 862 727

VT 441 791 791 743 808 808 761

VA 50,265 53,919 53,236 53,236 54,476 53,591 53,591

240,378 269,103 236,221 228,228 272,496 237,107 228,984 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 103

Exhibit 8.11 2007 and Projected Future Year NonEGU PM10-PRI Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 645 702 594 594 717 609 609

DE 1,197 1,140 973 973 1,115 947 947

DC 46 52 29 29 53 30 30

ME 4,748 4,667 4,475 4,475 4,636 4,449 4,449

MD 5,711 6,177 5,498 5,498 6,181 5,502 5,502

MA 3,029 2,927 2,904 2,904 2,977 2,953 2,953

NH 1,141 1,259 1,258 1,258 1,270 1,269 1,269

NJ 3,147 3,381 3,331 3,331 3,444 3,392 3,392

NY 4,463 4,572 4,260 4,260 4,595 4,283 4,283

PA 22,275 22,832 20,891 20,891 22,937 20,996 20,996

RI 173 174 174 174 179 179 179

VT 146 128 128 128 128 128 128

VA 13,028 13,419 12,517 12,517 13,507 12,602 12,602

59,749 61,430 57,032 57,032 61,741 57,339 57,339 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 104

Exhibit 8.12 2007 and Projected Future Year NonEGU PM25-PRI Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 573 627 526 526 641 540 540

DE 1,083 1,021 876 876 993 848 848

DC 43 48 28 28 48 29 29

ME 3,727 3,811 3,658 3,658 3,802 3,653 3,653

MD 3,876 4,328 3,764 3,764 4,336 3,772 3,772

MA 2,572 2,495 2,485 2,485 2,542 2,532 2,532

NH 1,061 1,169 1,169 1,169 1,179 1,179 1,179

NJ 2,452 2,583 2,533 2,533 2,625 2,574 2,574

NY 2,415 2,517 2,329 2,329 2,538 2,350 2,350

PA 13,389 13,851 12,729 12,729 13,934 12,845 12,845

RI 124 124 124 124 128 128 128

VT 114 98 98 98 97 97 97

VA 10,296 10,611 9,885 9,885 10,674 9,947 9,947

41,726 43,281 40,204 40,204 43,538 40,492 40,492 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 105

Exhibit 8.13 2007 and Projected Future Year NonEGU SO2 Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 3,185 3,236 3,236 3,117 3,253 3,253 2,773

DE 8,206 7,883 6,541 5,598 7,703 6,357 5,378

DC 471 510 380 358 518 382 337

ME 15,571 13,194 12,678 12,462 13,049 12,545 6,510

MD 31,176 36,658 34,278 34,278 36,636 34,289 34,289

MA 9,057 8,259 8,041 7,592 8,254 8,041 5,192

NH 2,734 2,655 2,655 2,582 2,658 2,658 1,030

NJ 3,401 3,736 2,591 2,591 3,818 2,645 2,645

NY 44,307 44,712 42,072 42,072 44,792 42,150 42,150

PA 57,330 58,464 53,489 49,814 58,627 53,652 49,975

RI 1,501 1,415 1,415 1,321 1,437 1,437 1,002

VT 316 248 248 243 243 243 92

VA 54,486 55,328 52,044 52,044 55,623 52,338 52,338

231,742 236,297 219,668 214,071 236,610 219,988 203,710 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 106

Exhibit 8.14 2007 and Projected Future Year NonEGU VOC Emissions (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1,447 1,547 1,530 1,468 1,574 1,556 1,476

DE 3,406 3,068 2,588 2,547 2,972 2,572 2,530

DC 58 60 59 59 60 59 59

ME 4,987 4,931 4,885 4,745 4,760 4,718 4,559

MD 4,598 5,745 5,715 5,466 5,707 5,677 5,367

MA 4,094 4,156 4,102 4,057 4,077 4,022 3,965

NH 807 1,490 1,489 1,448 1,479 1,478 1,440

NJ 10,106 11,044 10,086 10,086 11,180 10,041 10,041

NY 9,772 9,948 9,815 9,640 9,985 9,849 9,635

PA 28,195 29,153 28,712 28,236 29,376 28,925 28,396

RI 922 950 945 919 967 963 930

VT 373 316 316 316 302 302 302

VA 35,018 35,538 35,461 35,461 35,670 35,593 35,593

103,783 107,947 105,705 104,450 108,110 105,755 104,292 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 107

8.3 NONROAD NMIM SOURCE PROJECT EMISSIONS

Exhibits 8.15 to 8.21 summarize the 2007 and projected emissions for NONROAD model 

sources by state for each criteria air pollutant. Seven values are listed for each pollutant:

2007 emissions

2017 projected emissions with growth only (GO)

2017 projected emissions with growth and existing controls (GC)

2017 projected emissions with growth, existing and potential new OTC controls (GX)

2020 projected emissions with growth only (GO)

2020 projected emissions with growth and existing controls (GC)

2020 projected emissions with growth, existing and potential new OTC controls (GX)

Detailed summaries by County and SCC are provided on MARAMA’s ftp site.

It is not possible to isolate the emission changes due to growth versus the emission changes 

due to future controls in a single NMIM run. Therefore, the emissions under the growth 

only (GO) and growth and existing controls (GC) scenarios are the same. There are 

currently no potential new OTC control measures for sources whose emissions are 

estimated by the NONROAD model. Therefore, the emissions under the growth and 

existing controls (GC) and with growth, existing and potential new OTC controls (GX) 

scenarios are the same. 

Exhibit 8.15 presents a state-level comparison of 2007, 2017 and 2020 annual CO 

emissions for NMIM/NONROAD sources. Emissions decrease by about 21% between 

2007 and 2013, but remain relatively flat from 2017 to 2020.

Exhibit 8.16 shows that annual NH3 emissions are very small relative to other source 

sectors (e.g., agricultural ammonia) and generally increase slightly from 2007 to 2020.

Exhibit 8.17 shows that annual NOx emissions decrease by about 42% between 2007 and 

2020 and by about 49% between 2007 and 2020 due to the turnover to newer engines 

subject to more stringent national emission standards.

Exhibits 8.18 and 8.19 shows that PM10-PRI and PM25-PRI emissions decrease about 

33% between 2007 and 2020 and by about 41% between 2007 and 2020.

Exhibit 8.20 shows that annual SO2 emissions are virtually eliminated by 2017 due to 

lower national limits on the sulfur content of nonroad diesel fuel. 

Exhibit 8.21 shows that annual VOC emissions decrease by about 41% between 2007 and 

2020 and by about 46% between 2007 and 2020 due to the turnover to newer engines 

subject to more stringent national emission standards.
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 108

Exhibit 8.15 2007/2013/2017/2020 NMIM/NONROAD CO Emissions by State (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 181,817 143,586 143,586 143,586 147,193 147,193 147,193

DE 55,173 40,188 40,188 40,188 40,703 40,703 40,703

DC 14,319 10,246 10,246 10,246 10,322 10,322 10,322

ME 131,319 92,029 92,029 92,029 90,629 90,629 90,629

MD 297,832 247,766 247,766 247,766 254,083 254,083 254,083

MA 324,793 240,812 240,812 240,812 246,540 246,540 246,540

NH 90,461 73,012 73,012 73,012 73,294 73,294 73,294

NJ 445,302 362,054 362,054 362,054 372,857 372,857 372,857

NY 911,813 716,153 716,153 716,153 730,897 730,897 730,897

PA 719,517 533,798 533,798 533,798 542,133 542,133 542,133

RI 54,028 35,863 35,863 35,863 36,713 36,713 36,713

VT 52,497 35,978 35,978 35,978 35,608 35,608 35,608

VA 415,093 335,531 335,531 335,531 341,458 341,458 341,458

3,693,965 2,867,016 2,867,016 2,867,016 2,922,431 2,922,431 2,922,431 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 109

Exhibit 8.16 2007/2013/2017/2020 NMIM/NONROAD NH3 Emissions by State (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 16 20 20 20 21 21 21

DE 6 6 6 6 7 7 7

DC 3 3 3 3 3 3 3

ME 13 15 15 15 15 15 15

MD 29 35 35 35 37 37 37

MA 28 34 34 34 36 36 36

NH 10 12 12 12 13 13 13

NJ 40 47 47 47 50 50 50

NY 83 99 99 99 105 105 105

PA 60 71 71 71 74 74 74

RI 5 5 5 5 5 5 5

VT 5 6 6 6 6 6 6

VA 45 53 53 53 55 55 55

342 405 405 405 427 427 427 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 110

Exhibit 8.17 2007/2013/2017/2020 NMIM/NONROAD NOx Emissions by State (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 16,056 8,748 8,748 8,748 7,786 7,786 7,786

DE 4,998 3,096 3,096 3,096 2,723 2,723 2,723

DC 2,788 1,534 1,534 1,534 1,250 1,250 1,250

ME 7,439 5,216 5,216 5,216 4,783 4,783 4,783

MD 25,726 15,357 15,357 15,357 13,481 13,481 13,481

MA 26,471 14,820 14,820 14,820 13,163 13,163 13,163

NH 8,562 5,530 5,530 5,530 5,277 5,277 5,277

NJ 36,345 20,713 20,713 20,713 18,361 18,361 18,361

NY 72,271 43,490 43,490 43,490 38,871 38,871 38,871

PA 55,362 30,467 30,467 30,467 26,182 26,182 26,182

RI 4,388 2,348 2,348 2,348 2,114 2,114 2,114

VT 3,743 2,364 2,364 2,364 2,109 2,109 2,109

VA 41,325 23,658 23,658 23,658 20,189 20,189 20,189

305,475 177,343 177,343 177,343 156,288 156,288 156,288 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 111

Exhibit 8.18 2007/2013/2017/2020 NMIM/NONROAD PM10-PRI Emissions by State 

(tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1,412 976 976 976 868 868 868

DE 476 300 300 300 258 258 258

DC 242 138 138 138 106 106 106

ME 1,151 810 810 810 706 706 706

MD 2,600 1,781 1,781 1,781 1,570 1,570 1,570

MA 2,384 1,630 1,630 1,630 1,438 1,438 1,438

NH 846 595 595 595 527 527 527

NJ 3,377 2,347 2,347 2,347 2,086 2,086 2,086

NY 7,059 4,684 4,684 4,684 4,075 4,075 4,075

PA 5,623 3,717 3,717 3,717 3,217 3,217 3,217

RI 367 229 229 229 202 202 202

VT 482 327 327 327 281 281 281

VA 4,128 2,695 2,695 2,695 2,319 2,319 2,319

30,146 20,229 20,229 20,229 17,652 17,652 17,652 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 112

Exhibit 8.19 2007/2013/2017/2020 NMIM/NONROAD PM25-PRI Emissions by State 

(tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1,343 922 922 922 818 818 818

DE 453 284 284 284 243 243 243

DC 234 132 132 132 102 102 102

ME 1,080 756 756 756 657 657 657

MD 2,473 1,681 1,681 1,681 1,477 1,477 1,477

MA 2,268 1,540 1,540 1,540 1,355 1,355 1,355

NH 799 559 559 559 494 494 494

NJ 3,213 2,217 2,217 2,217 1,964 1,964 1,964

NY 6,715 4,430 4,430 4,430 3,843 3,843 3,843

PA 5,346 3,511 3,511 3,511 3,029 3,029 3,029

RI 349 216 216 216 191 191 191

VT 455 307 307 307 263 263 263

VA 3,933 2,549 2,549 2,549 2,185 2,185 2,185

28,660 19,105 19,105 19,105 16,621 16,621 16,621 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 113

Exhibit 8.20 2007/2013/2017/2020 NMIM/NONROAD SO2 Emissions by State (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 802 30 30 30 32 32 32

DE 266 7 7 7 7 7 7

DC 196 3 3 3 3 3 3

ME 416 16 16 16 17 17 17

MD 1,436 36 36 36 38 38 38

MA 1,377 41 41 41 44 44 44

NH 441 16 16 16 18 18 18

NJ 1,905 55 55 55 58 58 58

NY 3,957 118 118 118 126 126 126

PA 2,972 84 84 84 86 86 86

RI 211 7 7 7 7 7 7

VT 202 7 7 7 7 7 7

VA 2,284 90 90 90 94 94 94

16,464 511 511 511 537 537 537 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 114

Exhibit 8.21 2007/2013/2017/2020 NMIM/NONROAD VOC Emissions by State 

(tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 20,721 11,803 11,803 11,803 10,985 10,985 10,985

DE 7,157 3,888 3,888 3,888 3,498 3,498 3,498

DC 1,324 749 749 749 710 710 710

ME 29,880 19,303 19,303 19,303 16,729 16,729 16,729

MD 35,160 21,226 21,226 21,226 19,890 19,890 19,890

MA 35,676 20,510 20,510 20,510 18,990 18,990 18,990

NH 17,108 11,030 11,030 11,030 9,785 9,785 9,785

NJ 47,521 27,430 27,430 27,430 25,802 25,802 25,802

NY 114,935 67,238 67,238 67,238 60,945 60,945 60,945

PA 86,397 51,382 51,382 51,382 46,399 46,399 46,399

RI 6,721 2,885 2,885 2,885 2,657 2,657 2,657

VT 10,339 6,714 6,714 6,714 5,864 5,864 5,864

VA 55,135 32,141 32,141 32,141 29,303 29,303 29,303

468,074 276,299 276,299 276,299 251,556 251,556 251,556 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 115

8.4 NONROAD COMMERCIAL MARINE VESSEL EMISSIONS

Exhibits 8.22 to 8.28 summarize the 2007 and projected future year commercial marine 

vessel emissions by state for each criteria air pollutant. Seven values are listed for each 

pollutant:

2007 emissions

2017 projected emissions with growth only (GO)

2017 projected emissions with growth and existing controls (GC)

2017 projected emissions with growth, existing and potential new OTC controls (GX)

2020 projected emissions with growth only (GO)

2020 projected emissions with growth and existing controls (GC)

2020 projected emissions with growth, existing and potential new OTC controls (GX)

Detailed summaries by County and SCC are provided on MARAMA’s ftp site.

Emissions of all pollutants except NH3 are projected to decrease as a result of Federal 

rules affecting Category 1 / 2 and Category 3 marine engines, including more stringent 

engine emission standards and sulfur in fuel limitations. There are currently no potential 

new OTC control measures for commercial marine vessels. 

Exhibit 8.22 presents a state-level comparison of 2007, 2017 and 2020 annual CO 

emissions for commercial marine vessels. Emissions decrease by about 13 percent from 

2007 to 2017, and 12 percent from 2007 to 2020.

Exhibit 8.23 shows that there are very little NH3 emissions from this sector.

Exhibit 8.24 shows that annual NOx emissions from commercial marine vessels decrease 

by 32 percent from 2007 to 2017 and 40 percent from 2007 to 2020.

Exhibits 9.25 and 9.26 show that annual PM10-PRI and PM2.5-PRI emissions from 

commercial marine vessels decrease substantially after 2007. For both pollutants, 

emissions are reduced by about 57 percent from 2007 to 2017 and 66 percent from 2007 to 

2020.

Exhibit 8.27 shows that that annual SO2 emissions from commercial marine vessels 

decrease dramatically after 2007. SO2 emissions are reduced by about 89 percent from 

2007 to 2017 and 93 percent from 2007 to 2020.

Exhibit 8.28 shows that annual VOC emissions from commercial marine vessels decrease 

by 15 percent from 2007 to 2017, and 20 percent from 2007 to 2020.
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 116

Exhibit 8.22 2007 and Projected CO Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1,078 1,073 912 912 1,102 908 908

DE 554 543 485 485 554 484 484

DC 1 1 1 1 1 1 1

ME 522 521 438 438 536 435 435

MD 2,795 2,792 2,350 2,350 2,871 2,337 2,337

MA 1,473 1,475 1,232 1,232 1,518 1,225 1,225

NH 89 84 83 83 85 84 84

NJ 1,619 2,202 2,067 2,067 2,427 2,254 2,254

NY 3,476 3,452 2,961 2,961 3,541 2,949 2,949

PA 1,294 1,283 1,106 1,106 1,315 1,102 1,102

RI 522 523 437 437 538 434 434

VT 0 0 0 0 0 0 0

VA 3,735 3,731 3,166 3,166 3,831 3,150 3,150

17,156 17,681 15,238 15,238 18,319 15,363 15,363 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 117

Exhibit 8.23 2007 and Projected NH3 Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 3 3 3 3 3 3 3

DE 0 0 0 0 0 0

DC 0 0 0 0 0 0 0

ME 0 0 0 0 0 0

MD 8 8 8 8 8 8 8

MA 0 0 0 0 0 0

NH 0 0 0 0 0 0

NJ 8 11 11 11 12 12 12

NY 2 2 2 2 2 2 2

PA 13 12 12 12 13 13 13

RI 1 1 1 1 1 1 1

VT 0 0 0 0 0 0 0

VA 9 9 9 9 9 9 9

44 46 46 46 47 47 47 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 118

Exhibit 8.24 2007 and Projected NOx Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 6,528 6,454 4,162 4,162 6,608 3,642 3,642

DE 5,095 4,966 3,217 3,217 5,054 2,857 2,857

DC 6 6 4 4 6 3 3

ME 1,659 1,638 1,057 1,057 1,676 926 926

MD 16,027 15,929 10,256 10,256 16,343 8,922 8,922

MA 3,246 3,247 2,086 2,086 3,340 1,803 1,803

NH 271 258 169 169 260 154 154

NJ 11,197 15,318 11,140 11,140 16,906 10,251 10,251

NY 28,180 27,913 17,990 17,990 28,598 15,709 15,709

PA 11,378 11,237 7,249 7,249 11,498 6,350 6,350

RI 2,829 2,825 1,816 1,816 2,904 1,572 1,572

VT 0 0 0 0 0 0 0

VA 21,760 21,643 14,445 14,445 22,172 12,750 12,750

108,175 111,435 73,591 73,591 115,365 64,937 64,937 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 119

Exhibit 8.25 2007 and Projected PM10-PRI Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 312 305 124 124 310 101 101

DE 327 315 99 99 319 75 75

DC 0 0 0 0 0 0 0

ME 395 384 144 144 391 114 114

MD 657 649 301 301 664 251 251

MA 316 315 162 162 323 138 138

NH 13 12 3 3 13 2 2

NJ 622 887 244 244 989 241 241

NY 1,671 1,649 753 753 1,686 626 626

PA 524 511 197 197 519 158 158

RI 112 112 55 55 115 47 47

VT 0 0 0 0 0 0 0

VA 947 934 461 461 953 394 394

5,897 6,072 2,543 2,543 6,283 2,146 2,146 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 120

Exhibit 8.26 2007 and Projected PM25-PRI Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 296 290 119 119 295 97 97

DE 305 294 93 93 297 70 70

DC 0 0 0 0 0 0 0

ME 364 354 132 132 359 105 105

MD 606 600 285 285 614 239 239

MA 290 289 149 149 297 127 127

NH 12 11 3 3 12 2 2

NJ 575 820 225 225 915 223 223

NY 1,541 1,520 695 695 1,555 578 578

PA 484 472 183 183 480 146 146

RI 108 107 53 53 110 45 45

VT 0 0 0 0 0 0 0

VA 908 896 446 446 915 383 383

5,491 5,654 2,384 2,384 5,851 2,016 2,016 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 121

Exhibit 8.27 2007 and Projected SO2 Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1,386 1,327 147 147 1,341 60 60

DE 2,079 1,984 225 225 2,000 84 84

DC 1 1 0 0 1 0 0

ME 189 185 17 17 189 12 12

MD 2,170 2,099 217 217 2,128 109 109

MA 698 684 64 64 698 42 42

NH 506 482 55 55 486 20 20

NJ 6,712 10,085 403 403 11,405 452 452

NY 9,321 9,181 821 821 9,383 601 601

PA 3,067 2,909 343 343 2,925 111 111

RI 632 607 66 66 613 28 28

VT 0 0 0 0 0 0 0

VA 4,058 3,928 940 940 3,969 747 747

30,820 33,473 3,296 3,296 35,139 2,268 2,268 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 122

Exhibit 8.28 2007 and Projected VOC Emissions for CMV (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 161 158 127 127 162 117 117

DE 158 153 133 133 156 127 127

DC 0 0 0 0 0 0 0

ME 234 234 168 168 240 145 145

MD 371 367 282 282 376 252 252

MA 528 529 381 381 544 328 328

NH 23 21 21 21 22 21 21

NJ 658 857 753 753 933 754 754

NY 1,906 1,895 1,681 1,681 1,918 1,606 1,606

PA 538 534 406 406 547 360 360

RI 64 64 47 47 66 42 42

VT 0 0 0 0 0 0 0

VA 523 518 409 409 530 370 370

5,164 5,331 4,410 4,410 5,493 4,121 4,121 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 123

8.5 NONROAD AIRPORT EMISSIONS 

Exhibits 9.29 to 9.35 summarize the 2007 and projected future year airport emissions by 

state for each criteria air pollutant. Seven values are listed for each pollutant:

2007 emissions

2017 projected emissions with growth only (GO)

2017 projected emissions with growth and existing controls (GC)

2017 projected emissions with growth, existing and potential new OTC controls (GX)

2020 projected emissions with growth only (GO)

2020 projected emissions with growth and existing controls (GC)

2020 projected emissions with growth, existing and potential new OTC controls (GX)

Detailed summaries by County and SCC are provided on MARAMA’s ftp site.

There were no NH3 emissions reported for airport operations. Emissions of other 

pollutants are projected to change as a result of changes in airline activity levels. No state

or Federal rules were identified that would reduce emissions from aircraft operations in the 

future. There are currently no potential new OTC control measures for airports.

CO, PM10, PM2.5 and VOC emissions are projected to remain relatively constant between 

2007 levels by 2017. By 2020, the will be a slight increase in emissions from 2007 due to 

increased operations by 2020. 

NOx and SO2 emissions are projected to increase by 7 percent from 2007 levels by 2017 

and by 13 percent by 2020 due to increased air traffic. 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 124

Exhibit 8.29 2007 and Projected CO Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 4,659 4,224 4,224 4,224 4,386 4,386 4,386

DE 1,625 1,550 1,550 1,550 1,593 1,593 1,593

DC 14 14 14 14 14 14 14

ME 32,879 32,774 32,774 32,774 32,802 32,802 32,802

MD 10,265 10,042 10,042 10,042 10,335 10,335 10,335

MA 15,495 14,592 14,592 14,592 14,940 14,940 14,940

NH 2,089 1,861 1,861 1,861 1,883 1,883 1,883

NJ 21,878 21,837 21,837 21,837 22,411 22,411 22,411

NY 17,403 18,579 18,579 18,579 19,706 19,706 19,706

PA 26,540 26,165 26,165 26,165 27,345 27,345 27,345

RI 1,739 2,255 2,255 2,255 2,280 2,280 2,280

VT 2,420 2,100 2,100 2,100 2,127 2,127 2,127

VA 22,009 22,689 22,689 22,689 23,190 23,190 23,190

159,016 158,684 158,684 158,684 163,012 163,012 163,012 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 125

Exhibit 8.30 2007 and Projected NH3 Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 0 0 0 0 0 0 0

DE 0 0 0 0 0 0 0

DC 0 0 0 0 0 0 0

ME 0 0 0 0 0 0 0

MD 0 0 0 0 0 0 0

MA 0 0 0 0 0 0 0

NH 0 0 0 0 0 0 0

NJ 0 0 0 0 0 0 0

NY 0 0 0 0 0 0 0

PA 0 0 0 0 0 0 0

RI 0 0 0 0 0 0 0

VT 0 0 0 0 0 0 0

VA 0 0 0 0 0 0 0

0 0 0 0 0 0 0
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 126

Exhibit 8.31 2007 and Projected NOx Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 713 657 657 657 688 688 688

DE 805 801 801 801 802 802 802

DC 0 0 0 0 0 0 0

ME 134 144 144 144 144 144 144

MD 1,910 2,021 2,021 2,021 2,119 2,119 2,119

MA 3,190 3,267 3,267 3,267 3,365 3,365 3,365

NH 278 256 256 256 260 260 260

NJ 5,105 5,408 5,408 5,408 5,612 5,612 5,612

NY 6,998 8,081 8,081 8,081 8,789 8,789 8,789

PA 3,738 4,094 4,094 4,094 4,406 4,406 4,406

RI 289 281 281 281 294 294 294

VT 103 113 113 113 117 117 117

VA 5,520 5,762 5,762 5,762 5,889 5,889 5,889

28,783 30,885 30,885 30,885 32,485 32,485 32,485 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 127

Exhibit 8.32 2007 and Projected PM10-PRI Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 66 59 59 59 61 61 61

DE 27 25 25 25 25 25 25

DC 0 0 0 0 0 0 0

ME 83 82 82 82 82 82 82

MD 74 70 70 70 73 73 73

MA 295 284 284 284 289 289 289

NH 37 34 34 34 34 34 34

NJ 170 173 173 173 177 177 177

NY 140 158 158 158 170 170 170

PA 396 385 385 385 400 400 400

RI 22 33 33 33 33 33 33

VT 46 40 40 40 40 40 40

VA 821 840 840 840 847 847 847

2,176 2,183 2,183 2,183 2,234 2,234 2,234 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 128

Exhibit 8.33 2007 and Projected PM25-PRI Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 51 46 46 46 48 48 48

DE 19 17 17 17 18 18 18

DC 0 0 0 0 0 0 0

ME 61 61 61 61 61 61 61

MD 16 17 17 17 17 17 17

MA 215 208 208 208 212 212 212

NH 27 25 25 25 25 25 25

NJ 143 146 146 146 150 150 150

NY 139 157 157 157 170 170 170

PA 294 288 288 288 300 300 300

RI 17 25 25 25 25 25 25

VT 32 28 28 28 29 29 29

VA 580 595 595 595 601 601 601

1,595 1,613 1,613 1,613 1,656 1,656 1,656 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 129

Exhibit 8.34 2007 and Projected SO2 Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 96 87 87 87 91 91 91

DE 55 55 55 55 55 55 55

DC 0 0 0 0 0 0 0

ME 14 16 16 16 16 16 16

MD 247 255 255 255 266 266 266

MA 218 226 226 226 236 236 236

NH 28 26 26 26 26 26 26

NJ 507 534 534 534 557 557 557

NY 699 808 808 808 877 877 877

PA 416 455 455 455 488 488 488

RI 30 29 29 29 31 31 31

VT 12 13 13 13 13 13 13

VA 424 455 455 455 466 466 466

2,746 2,959 2,959 2,959 3,122 3,122 3,122 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 130

Exhibit 8.35 2007 and Projected VOC Emissions for Airports (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 509 452 452 452 469 469 469

DE 620 598 598 598 600 600 600

DC 1 1 1 1 1 1 1

ME 161 161 161 161 162 162 162

MD 1,365 1,228 1,228 1,228 1,265 1,265 1,265

MA 1,129 1,080 1,080 1,080 1,105 1,105 1,105

NH 134 116 116 116 118 118 118

NJ 2,438 2,426 2,426 2,426 2,498 2,498 2,498

NY 1,571 1,761 1,761 1,761 1,896 1,896 1,896

PA 2,813 2,879 2,879 2,879 3,004 3,004 3,004

RI 112 166 166 166 168 168 168

VT 204 179 179 179 181 181 181

VA 2,764 2,764 2,764 2,764 2,802 2,802 2,802

13,822 13,813 13,813 13,813 14,269 14,269 14,269 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 131

8.6 NONROAD RAILROAD LOCOMOTIVE EMISSIONS 

Exhibits 9.36 to 9.42 summarize the 2007 and projected future year railroad locomotive 

emissions by state for each criteria air pollutant. Seven values are listed for each pollutant:

2007 emissions

2017 projected emissions with growth only (GO)

2017 projected emissions with growth and existing controls (GC)

2017 projected emissions with growth, existing and potential new OTC controls (GX)

2020 projected emissions with growth only (GO)

2020 projected emissions with growth and existing controls (GC)

2020 projected emissions with growth, existing and potential new OTC controls (GX)

Detailed summaries by County and SCC are provided on MARAMA’s ftp site.

Emissions of all pollutants except CO and NH3 are projected to decrease as a result of 

Federal rules affecting railroad locomotive engines, including more stringent engine 

emission standards and sulfur in fuel limitations. There are currently no potential new 

OTC control measures for railroad locomotives.

Exhibit 8.36 presents a state-level comparison of 2007, 2017 and 2020 annual CO 

emissions for railroad locomotives. CO emissions show small changes (< 7 percent) 

between 2007 and 2017/2020.

Exhibit 8.37 shows that there are very little NH3 emissions from this sector.

Exhibit 8.38 shows that annual NOx emissions from railroad locomotives decrease by 33

percent from 2007 to 2017, and 39 percent from 2007 to 2020.

Exhibits 9.39 and 9.40 show that annual PM10-PRI and PM2.5-PRI emissions from 

railroad locomotives decrease substantially after 2007. For both pollutants, emissions are 

reduced by about 49 percent from 2007 to 2017, and 57 percent from 2007 to 2020.

Exhibit 8.41 shows that SO2 emissions from railroad locomotives are virtually eliminatd 

by 2017. 

Exhibit 8.42 shows that annual VOC emissions from railroad locomotives decrease by 42

percent from 2007 to 2017 and 50 percent from 2007 to 2020.
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 132

Exhibit 8.36 2007 and Projected CO Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 184 198 188 188 206 193 193

DE 75 76 76 76 79 79 79

DC 73 75 75 75 78 77 77

ME 188 191 191 191 198 198 198

MD 700 720 713 713 746 736 736

MA 646 695 662 662 723 679 679

NH 88 90 90 90 93 93 93

NJ 665 780 744 744 818 771 771

NY 3,061 3,181 3,122 3,122 3,298 3,220 3,220

PA 2,987 3,044 3,041 3,041 3,149 3,145 3,145

RI 15 15 15 15 16 16 16

VT 72 74 74 74 76 76 76

VA 2,701 2,758 2,750 2,750 2,854 2,843 2,843

11,456 11,899 11,741 11,741 12,333 12,126 12,126 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 133

Exhibit 8.37 2007 and Projected NH3 Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1 1 1 1 1 1 1

DE 0 0 0 0 0 0 0

DC 0 0 0 0 0 0 0

ME 0 0 0 0 0 0 0

MD 0 0 0 0 0 0 0

MA 2 2 2 2 2 2 2

NH 0 0 0 0 0 0 0

NJ 2 2 2 2 3 3 3

NY 0 1 1 1 1 1 1

PA 9 9 9 9 10 10 10

RI 0 0 0 0 0 0 0

VT 0 0 0 0 0 0 0

VA 8 8 8 8 9 9 9

23 24 24 24 25 25 25 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 134

Exhibit 8.38 2007 and Projected NOx Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 1,723 1,866 1,088 1,088 1,942 991 991

DE 384 391 279 279 404 256 256

DC 505 521 353 353 540 322 322

ME 1,369 1,394 1,289 1,289 1,442 1,262 1,262

MD 4,767 4,904 3,127 3,127 5,078 2,815 2,815

MA 6,133 6,623 3,743 3,743 6,893 3,368 3,368

NH 891 907 871 871 939 864 864

NJ 5,957 6,982 3,839 3,839 7,323 3,469 3,469

NY 20,675 21,473 13,144 13,144 22,259 11,782 11,782

PA 20,675 21,080 14,413 14,413 21,808 13,174 13,174

RI 144 147 99 99 152 90 90

VT 736 749 719 719 775 713 713

VA 18,319 18,728 12,061 12,061 19,381 10,856 10,856

82,279 85,765 55,025 55,025 88,936 49,960 49,960 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 135

Exhibit 8.39 2007 and Projected PM10-PRI Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 46 49 27 27 51 23 23

DE 15 16 8 8 16 7 7

DC 12 12 6 6 13 6 6

ME 28 28 22 22 29 21 21

MD 166 171 80 80 177 68 68

MA 159 171 84 84 178 71 71

NH 22 22 18 18 23 17 17

NJ 160 187 89 89 196 75 75

NY 608 631 295 295 654 249 249

PA 704 717 356 356 742 309 309

RI 4 4 2 2 4 2 2

VT 18 18 15 15 19 14 14

VA 634 648 303 303 670 257 257

2,574 2,675 1,303 1,303 2,772 1,119 1,119 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 136

Exhibit 8.40 2007 and Projected PM25-PRI Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 39 42 22 22 44 19 19

DE 15 15 8 8 16 7 7

DC 11 12 6 6 12 6 6

ME 25 26 20 20 27 19 19

MD 161 166 78 78 172 66 66

MA 145 157 77 77 163 65 65

NH 21 21 17 17 22 17 17

NJ 147 173 82 82 181 69 69

NY 572 595 278 278 616 235 235

PA 650 663 330 330 686 286 286

RI 3 3 2 2 3 1 1

VT 17 17 13 13 18 13 13

VA 586 599 280 280 620 238 238

2,395 2,488 1,213 1,213 2,579 1,041 1,041 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 137

Exhibit 8.41 2007 and Projected SO2 Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 57 61 5 5 64 5 5

DE 5 5 0 0 6 0 0

DC 37 38 0 0 39 0 0

ME 92 94 0 0 97 0 0

MD 64 66 0 0 68 0 0

MA 66 70 0 0 73 0 0

NH 10 10 0 0 11 0 0

NJ 52 61 0 0 64 0 0

NY 616 641 2 2 665 2 2

PA 211 216 1 1 223 1 1

RI 5 6 0 0 6 0 0

VT 5 5 0 0 5 0 0

VA 192 196 1 1 203 1 1

1,413 1,469 9 9 1,522 10 10 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 138

Exhibit 8.42 2007 and Projected VOC Emissions for Railroads (tons)

2007

2017

Growth

Only

2017

Growth &

Existing

Controls

2017

Growth &

Existing & 

New OTC

Controls

2020

Growth

Only

2020

Growth &

Existing

Controls

2020

Growth &

Existing & 

New OTC

Controls

State 2007 2017 GO 2017 GC 2017 GX 2020 GO 2020 GC 2020 GX

CT 73 79 49 49 82 42 42

DE 28 29 17 17 30 15 15

DC 34 35 23 23 36 20 20

ME 51 51 47 47 53 47 47

MD 271 279 146 146 289 122 122

MA 267 286 162 162 298 135 135

NH 35 36 36 36 37 37 37

NJ 258 302 216 216 317 200 200

NY 1,112 1,155 596 596 1,197 493 493

PA 1,153 1,176 655 655 1,216 569 569

RI 8 8 4 4 8 4 4

VT 29 29 29 29 30 30 30

VA 1,025 1,047 537 537 1,083 451 451

4,343 4,511 2,519 2,519 4,676 2,167 2,167 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 139

9.0 PREPARATION OF SMOKE MODEL FILES

Air quality modelers in the Mid-Atlantic and Northeastern states use the SMOKE 

Modeling System to create gridded, speciated, hourly emissions for input into a variety of 

air quality models. This section describes how the SMOKE inventory files were 

developed. It also describes how the SMOKE the temporal allocation, speciation, and 

spatial allocation profiles, respectively, were developed. . SMOKE inventory files were 

created for the following types of sources (which are described in Section 1.3):

9.1 NONEGU POINT SOURCE SMOKE EMISSION FILES

Annual nonEGU point source inventories were prepared in SMOKE PTINV ORL format. 

9.2 AREA SOURCE SMOKE EMISSION FILES

Annual area source inventories for 2017 and 2020 were prepared in SMOKE ARINV ORL 

format. In developing the SMOKE ARINV ORL files for area sources, the USEPA 

“transport factor” was applied to reduce fugitive dust emissions to account for the removal 

of particles near their emission source by vegetation and surface features. The transport 

factor was NOT applied to the NIF-formatted annual emissions, but only to the SMOKE 

ARINV ORL-formatted file. 

The standard transport fractions and SCC assignments from the USEPA CHIEF website 

(USEPA 2007c) were used to reduce the PM10-PRI and PM25-PRI emissions in the area 

source inventories. Two files were used. The first file contains a list of SCCs for which 

the transport factor was applied. The major source categories included paved and unpaved 

roads, construction activity, agricultural crop land tilling, and agricultural livestock 

operations. The second file contains the transport factor which varies by county. For 

example, in Connecticut the transport fraction ranges from 0.21 in Tolland County to 0.44 

in New Haven County. 

Applying the transport factor to area source fugitive dust emissions significantly reduces 

that amount of particulate matter included in the air quality modeling. Region wide, 

PM10-PRI emissions are reduced by about 54 percent and PM25-PRI emissions are 

reduced by about 25 percent by applying the transport fraction. The percent reduction 

varies by state due to the relative importance of the area source fugitive dust emissions 

compared to non-fugitive dust source emissions. 

9.3 NONROAD NMIM SMOKE EMISSION FILES

As discussed in Section 7, the NMIM/NONROAD model was executed using 

specifications to generate monthly emission files. Monthly SMOKE ARINV ORL files 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 140

were created. Average day emissions were calculated by dividing the NONROAD 

generated monthly emissions by the number of days in each month. Summary reports 

were prepared to verify agreement between the average day, monthly, and annual 

emissions.

9.4 NONROAD MAR SMOKE EMISSION FILES

Annual inventories for marine vessels, airport operations and railroad locomotives were 

prepared in SMOKE ARINV ORL format for each county in the region. Average day 

emissions were calculated by dividing the annual emissions by 365 days. The ORL files 

for Category 3 commercial marine vessels include only the emissions that occur in state

waters (generally from the shoreline to 3–10 nautical miles from shore). 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 141

10.0 FINAL DELIVERABLES

Exhibits 10.1 to10.3 identify the deliverable products for the 2017 and 2020 MANEVU+VA emission inventories developed by MACTEC under this contract. The exhibit 

also identifies deliverables associated with the 2017 and 2020 MANE-VU+VA inventories 

under development by other agencies.

Files are stored on MARAMA ftp site:

Address: ftp.marama.org

Login ID: regionalei

Password: marama2007 

Files are stored in the following directories:

\MARAMA 07-17-20 Version 3\Final 2017 2020 (Version 3_3)/NIF

\MARAMA 07-17-20 Version 3\Final 2017 2020 (Version 3_3)/SMOKE

\MARAMA 07-17-20 Version 3\Final 2017 2020 (Version 3_3)/TSD

\MARAMA 07-17-20 Version 3\Final 2017 2020 (Version 3_3)/XLS

The contents of each folder are provided in Exhibits 10.1, 10.2, and 10.3. 
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 142

Exhibit 10.1 – NIF Data Files for the 2017/2020 MANE-VU+VA Emission Inventories

File Description File Name Format Notes

2017 Annual Point Source Emission 

Inventory in NOF format

MANEVU+VA_V3_3 Point_2017_NOF.mdb NOF ACCESS File includes only those point 

sources classified as “nonEGU” 

according to the ERTAC definition.

See file for Field Definitions

2020 Annual Point Source Emission 

Inventory in NOF format

MANEVU+VA_V3_3 Point_2020_NOF.mdb NOF ACCESS

2017 Annual Area Source Emission 

Inventory in NOF format

MANEVU+VA_V3_3 Area_2017_NOF.mdb NOF ACCESS See file for Field Definitions

2020 Annual Area Source Emission 

Inventory in NOF format

MANEVU+VA_V3_3 Area_2020_NOF.mdb NOF ACCESS See file for Field Definitions

2017 Annual NMIM/NONROAD 

Emission Inventory in NOF format

2017MARAMANMIMv3.mdb NOF ACCESS See file for Field Definitions

2020 Annual NMIM/NONROAD 

Emission Inventory in NOF format

2020MARAMANMIMv3.mdb NOF ACCESS See file for Field Definitions

2017 Annual MAR Emission 

Inventory in NOF format

MANEVU+VA_V3_3_MAR_2017_NOF.mdb NOF ACCESS See file for Field Definitions

2020 Annual MAR Emission 

Inventory in NOF format

MANEVU+VA_V3_3_MAR_2020_NOF.mdb NOF ACCESS See file for Field Definitions
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

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Exhibit 10.2 – Summary Spreadsheet Files for the 2017/2020 MANE-VU+VA Emission Inventories

File Description File Name Format Notes

County/SCC level emissions 

for all 2017/2020 scenarios

V3_3 Area_07_17_20.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2017

MANEVU+VA_V3_3_Area_2017_ExistingControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2017

MANEVU+VA_V3_3_Area_2017_What IfControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2020

MANEVU+VA_V3_3_Area_2020_ExistingControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2020

MANEVU+VA_V3_3_Area_2020_What IfControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Tables and graphs used in the 

TSD

TSD V3_3 2017_2020 Area Graphs.xlsx MS EXCEL See file for Field 

Definitions

County/SCC level emissions 

for all 2017/2020 scenarios

V3_3 MAR_07_17_20.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2017

MANEVU+VA_V3_3_MAR_2017_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2020

MANEVU+VA_V3_3_MAR_2020_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Tables and graphs used in the 

TSD

TSD V3_3 2017_2020 MAR Graphs.xlsx MS EXCEL See file for Field 

Definitions

Process level emissions for all 

2017/2020 scenarios

V3_3 NonEGU_07_17_20.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2017

MANEVU+VA_V3_3_NonEGU_2017_ExistingControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2017

MANEVU+VA_V3_3_NonEGU_2017_What IfControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2020

MANEVU+VA_V3_3_NonEGU_2020_ExistingControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 144

Excel summary of emissions 

by State and SCC for 2020

MANEVU+VA_V3_3_NonEGU_2020_What IfControls_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Tables and graphs used in the 

TSD

TSD V3_3 2017_2020 NonEGU Graphs.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2017

MANEVU+VA_V3_3_NMIM_2017_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Excel summary of emissions 

by State and SCC for 2020

MANEVU+VA_V3_3_NMIM_2020_StateSCCSummaries.xlsx MS EXCEL See file for Field 

Definitions

Tables and graphs used in the 

TSD

TSD V3_3 2017_2020 NMIM Graphs.xlsx MS EXCEL See file for Field 

Definitions
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 145

Exhibit 10.2 – SMOKE Files for the 2013/2017/2020 MANE-VU+VA Emission Inventories

File Description File Name Format Notes

2017 Annual Point Source Emission 

Inventory in SMOKE ORL format

PTINV_2017_NonHourly_ExistingControls_Jan2012.orl SMOKE 

PTINV

ORL

Files includes only those point 

sources classified as “nonEGU” 

according to the ERTAC definition.

See file for Field Definitions 2017 Annual Point Source Emission 

Inventory in SMOKE ORL format

PTINV_2017_NonHourly_WhatIfControls_Jan2012.orl SMOKE 

PTINV

ORL

2020 Annual Point Source Emission 

Inventory in SMOKE ORL format

PTINV_2020_NonHourly_ExistingControls_Jan2012.orl SMOKE 

PTINV

ORL

2020 Annual Point Source Emission 

Inventory in SMOKE ORL format

PTINV_2020_NonHourly_WhatIfControls_Jan2012.orl SMOKE 

PTINV

ORL

2017 Annual Area Source Emission 

Inventory in SMOKE ORL format

ARINV_2017_Area_ExistingControls_Jan2012.orl SMOKE 

ARINV

ORL Nonpoint

These files have the PM transport 

factors by county applied to the NOF 

emissions. See section 10.2 for 

discussion.

See http://www.smokemodel.org/version2.6/html/ for file 

format

2017 Annual Area Source Emission 

Inventory in SMOKE ORL format

ARINV_2017_Area_WhatIfControls_Jan2012.orl SMOKE 

ARINV

ORL Nonpoint

2020 Annual Area Source Emission 

Inventory in SMOKE ORL format

ARINV_2020_Area_ExistingControls_Jan2012.orl SMOKE 

ARINV

ORL nonpoint

2020 Annual Area Source Emission 

Inventory in SMOKE ORL format

ARINV_2020_Area_WhatIfControls_Jan2012.orl SMOKE 

ARINV

ORL nonpoint

2013 Annual MAR Source 

Emission Inventory in SMOKE 

ORL format

ARINV_2017_MAR_Jan2012.txt SMOKE 

ARINV

ORL Nonpoint

See http://www.smokemodel.org/version2.6/html/ for file 

format

2017 Annual MAR Source 

Emission Inventory in SMOKE 

ORL format

ARINV_2020_MAR_Jan2012.txt SMOKE 

ARINV

ORL Nonpoint

See http://www.smokemodel.org/version2.6/html/ for file 

format
Documentation for the 2017/2020 Emission Inventories for the Northeast / Mid-Atlantic Region January 23, 2012

Page 146

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