Vehicles and Fuels : NACAA Positions| Related Documents| Related Links

Motor vehicles are a major source of air pollution worldwide. In many urban areas, motor vehicles collectively produce 50 to 90 percent of local air pollution, depending upon the pollutant. Vehicles can also produce a significant amount of the toxic or hazardous pollutants found in our air. Motor vehicles are typically divided into two categories: on-road mobile sources and nonroad mobile sources. Most nations set standards for both engines and fuels in order to reduce air pollution. In the U.S., only EPA and the State of California are permitted to establish new vehicle and fuel standards; other states may adopt California standards if they choose. In addition to fuel type and quality, mobile source emissions are also affected by driving behavior and roadway infrastructure.

NACAA Positions

• GHGs/CAFE – EPA-NHTSA Joint Proposed Light-Duty Vehicle GHG and CAFE Standards for MY 2017 and Later Vehicles – NACAA Testimony at San Francisco Hearing (January 24, 2012)
  
• GHGs/CAFE – EPA-NHTSA Joint Proposed Light-Duty Vehicle GHG and CAFE standards for MY 2017 and Later Vehicles – NACAA Final Written Comments (January 24, 2012)
  
• GHGs/CAFE – EPA-NHTSA Joint Proposed Light-Duty Vehicle GHG and CAFE Standards for MY 2017 and Later Vehicles-NACAA Testimony at Philadelphia Hearing (January 19, 2012)
  
• NACAA Letter to EPA Urging Action on General Aviation Lead Emissions (February 10, 2010)
  
• NACAA Comments on EPA's Proposed Findings that GHGs Endanger Public Health and Welfare and That GHG Emissions from New Motor Vehicles and New Motor Vehicle Engines Contribute to the Mix of Air Pollution Endangering Public Health and Welfare (June 17, 2009
  
• NACAA Testimony on EPA’s Proposed Endangerment Finding and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the Clean Air Act, for Public Hearing in Seattle, WA (May 21, 2009)
  
• NACAA Testimony on EPA’s Proposed Endangerment Finding and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the Clean Air Act, for Public Hearing in Arlington, VA (May 18, 2009)
  
• NACAA Testimony on the American Clean Energy and Security Act (Waxman-Markey bill) (April 24, 2009)
  
• Change is in the Air: NACAA Recommendations to the New Administration on Improving Our Nation’s Clean Air Program (December 16, 2008)
  
• Joint Brief of Amici Curiae, Including NACAA, Filed in DC Circuit Court of Appeals in Support of Petitioner State of California, Regarding California Waiver of Federal Preemption to Enforce State’s Motor Vehicle GHG Emission Standards (November 24, 2008)
  
• Amicus Brief Submitted to Ninth Circuit Court of Appeals in EMA v. SCAQMD, Regarding South Coast's Fleet Rule (December 22, 2006)
  Amici include NACAA, the National League of Cities, the California League of Cities and the International Municipal Lawyers Association.
• Coalition Letter to President Bush Requesting FY 2008 Funding for DERA and STAG Air Grants (December 1, 2006)
  
• Go to Subtopics
  

Related Documents

• EPA Study: The Benefits and Costs of the Clean Air Act from 1990 to 2020 (March 1, 2011)
  
• Go to Subtopics
  

Related Links

• Go to related links for more information about Vehicles and Fuels

Subtopics

Cars, Trucks and Buses :  NACAA Positions| Related Documents| Related Links

Automobiles, motorcycles, trucks, and buses are commonly referred to as “on-road” mobile sources. Automobiles and light-duty trucks are a major source of air pollution all over the world. Emissions from these vehicles come from the tailpipe as well as from evaporation from fuel tanks, out of the oil reservoir, and around engine seals. Refueling vapors are also a significant source of emissions. Most cars and light-duty trucks are fueled by gasoline, and generate large quantities of VOC, NO_x, CO, and CO₂ emissions. Motorcycles represent a large part of the vehicle fleet in developing countries. Two-stroke motorcycles are especially polluting and can emit more air pollution than a fleet of modern automobiles. Most heavy-duty trucks and buses are powered by diesel fuel, which can generate significant amounts of NO_x and SO_x emissions (especially in areas with high-sulfur content fuels), as well as potentially cancer-causing particulate matter. Emission controls for mobile sources are capable of reducing vehicle emissions by more than 95 percent, compared to uncontrolled carbureted vehicles.

NACAA Positions

• NACAA Letter to EPA Administrator Urging Proposal and Promulgation of Tier 3 Vehicle and Gasoline Standards in 2013 (January 22, 2013)
  
• CA Cars – NACAA Testimony in Support of California’s Waiver Request for Advanced Clean Car Program (September 19, 2012)
  
• GHGs/CAFE – EPA-NHTSA Joint Proposed Light-Duty Vehicle GHG and CAFE Standards for MY 2017 and Later Vehicles – NACAA Testimony at San Francisco Hearing (January 24, 2012)
  
• GHGs/CAFE – EPA-NHTSA Joint Proposed Light-Duty Vehicle GHG and CAFE standards for MY 2017 and Later Vehicles – NACAA Final Written Comments (January 24, 2012)
  
• GHGs/CAFE – EPA-NHTSA Joint Proposed Light-Duty Vehicle GHG and CAFE Standards for MY 2017 and Later Vehicles-NACAA Testimony at Philadelphia Hearing (January 19, 2012)
  
• Cleaner Cars, Cleaner Fuel, Cleaner Air: The Need for and Benefits of Tier 3 Vehicle and Fuel Regulations (October 31, 2011)
  
• Tier 3 – Letter to EPA Administrator Lisa Jackson with NACAA’s Recommendations for Tier 3 LDV Standards and Gasoline Sulfur Requirements (June 27, 2011)
  
• GHGs - NACAA Comments on EPA-NHTSA Proposed GHG Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Vehicles (January 31, 2011)
  
• NACAA Letter to EPA Urging Action on General Aviation Lead Emissions (February 10, 2010)
  
• GHGs – NACAA Comments on the Joint EPA/NHTSA Light-Duty Vehicle GHG Emissions Standards and CAFE Standards (November 24, 2009)
  
• NACAA Testimony on the Joint EPA/NHTSA Proposed Light-Duty Vehicle GHG Emissions Standards and CAFE Standards (October 23, 2009)
  
• CA Waiver – NACAA Comments on EPA’s Reconsideration of Previous Denial of a Waiver of Federal Preemption for California’s GHG Vehicle Emissions Standards (April 6, 2009)
  
• CA Waiver – NACAA Testimony for EPA’s Public Hearing on Reconsideration of the Previous Denial of a Waiver of Preemption for California’s Motor Vehicle Emission Standards for Greenhouse Gases (March 5, 2009)
  
• NACAA Comments on NHTSA’s Proposed CAFE Standards for Cars and Light Trucks, MYs 2011-2015 (June 30, 2008)
  
• VIN Requirements – NACAA Comments to NHTSA on Proposal to Amend Vehicle Identification Number Regulations (November 16, 2007)
  
• DERA/STAG Funding – Coalition Letter to President Bush Urging FY 2009 Funding for State and Local Air Quality Grants and Diesel Retrofits (October 3, 2007)
  
• CA's Waiver Request for GHG Standards - NACAA Comments Supporting Waiver Request (June 15, 2007)
  
• CA's Waiver Request for GHG Standards - NACAA Letter to EPA Opposing Delay in Close of Public Comment Period (June 6, 2007)
  
• Energy Legislation - NACAA Letter to House Energy and Commerce Leadership Opposing Draft Legislation Preempting State and Federal Authorities to Regulate Motor Vehicle GHG Emissions (June 7, 2007)
  
• CA's Waiver Request for GHG Standards - NACAA's Testimony in Support of California's Waiver Request, Provided at EPA's Public Hearing in Sacramento, CA (May 30, 2007)
  
• CA's Waiver Request for GHG Standards - NACAA's Testimony in Support of California's Waiver Request, Provided at EPA's Public Hearing in Arlington, VA (May 22, 2007)
  
• Amicus Brief Submitted to Ninth Circuit Court of Appeals in EMA v. SCAQMD, Regarding South Coast's Fleet Rule (December 22, 2006)
  Amici include NACAA, the National League of Cities, the California League of Cities and the International Municipal Lawyers Association.
• Coalition Letter to President Bush Requesting FY 2008 Funding for DERA and STAG Air Grants (December 1, 2006)
  
• STAPPA/ALAPCO Comments on NHTSA CAFE Proposal (November 19, 2005)
  
• STAPPA/ALAPCO Letter to NRC Committee Supporting Preservation of States’ Rights (July 19, 2005)
  
• STAPPA/ALAPCO Comments in Support of on California’s Request for a Waiver of Federal Preemption for 2007 Onroad Diesel Rule (January 24, 2005)
  
• STAPPA/ALAPCO Letter to EPA Urging Action to Ensure Diesel Engine Reflash (December 15, 2004)
  
• STAPPA/ALAPCO Comments on DOT NHTSA’s 12/29/03 ANPRM on Reforming the CAFE Program (April 27, 2004)
  
• STAPPA/ALAPCO Letter to the American Trucking Associations on the 2007 Diesel Rule (January 30, 2004)
  
• Amicus Brief in Supreme Court Case of EMA and WSPA v. SCAQMD (November 17, 2003)
  
• Letter to American Trucking Associations on 2007 Highway Diesel Rule (July 30, 2003)
  
• STAPPA/ALAPCO Letter to EPA Urging Denial of Petitions to Reconsider 2004 Onroad HDD Rule (February 6, 2003)
  
• STAPPA/ALAPCO Amicus Brief on Heavy-Duty Diesel Consent Decrees (July 31, 2002)
  
• STAPPA/ALAPCO Statement at EPA/DOJ Heavy-Duty Diesel Consent Decrees Public Meeting (July 25, 2002)
  
• STAPPA/ALAPCO Letter to President Bush Urging Enforcement of HDD Consent Decrees (July 9, 2002)
  
• STAPPA/ALAPCO, ALA and NRDC Letter to EPA Administrator Whitman Urging Against Changes to Panel to Review Progress in Developing Technology for 2007 HDD Rule (May 20, 2002)
  
• STAPPA/ALAPCO Press Release Announcing Success of Multi-State Clean Diesel Initiative (March 28, 2002)
  
• Intervenors' Brief In Support of 2007 Diesel Rule (December 14, 2001)
  
• STAPPA/ALAPCO 'Regulating Air Pollution from Diesel Trucks: A Model Rule for States' (July 2001)
  
• STAPPA/ALAPCO Letter to Administrator Whitman on HDD CDs (June 14, 2001)
  
• STAPPA/ALAPCO Conditional Motion to Intervene in HDDCD Litigation (May 16, 2001)
  
• STAPPA/ALAPCO Press Release on Multi-State Clean Diesel Initiative (November 20, 2000)
  
• STAPPA/ALAPCO Comments on OBD Proposal (November 13, 2000)
  
• STAPPA/ALAPCO's Statement on Diesel Exhaust before CASAC (October 12, 2000)
  
• STAPPA/ALAPCO Comments on Mobile Source Air Toxics Proposal (September 20, 2000)
  
• STAPPA/ALAPCO's Statement at EPA Mobile Source Air Toxics Public Meeting (August 21, 2000)
  
• STAPPA and ALAPCO August 17, 2000 Comments on EPA's Draft Tier 2 Offset Guidance (August 17, 2000)
  
• STAPPA/ALAPCO Letter to EPA on Diesel Particulate (August 15, 2000)
  
• STAPPA/ALAPCO's Final Comments on EPA's Notice of Proposed Rulemaking on Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements (August 14, 2000)
  
• STAPPA/ALAPCO Letter to DOJ Assistant Administrator on the Consent Decrees (July 31, 2000)
  
• STAPPA/ALAPCO’s Testimony on EPA’s HDE/Low-Sulfur Diesel NPRM (June 19, 2000)
  
• STAPPA/ALAPCO Letter to HDD Consent Decree Companies Seeking Relief from Agreements (May 10, 2000)
  
• Letter to EPA and DOJ on Heavy-Duty Diesel Consent Decrees (March 15, 2000)
  
• STAPPA/ALAPCO Analysis on Cancer Risk from Diesel Particulate (March 15, 2000)
  
• STAPPA/ALAPCO Recommendations to EPA on Mobile Source Air Toxics (February 16, 2000)
  
• STAPPA/ALAPCO Letter to EPA Administrator Carol Browner on the Regulation of Heavy-Duty Diesel Engines and Fuels (January 18, 2000)
  
• STAPPA/ALAPCO News Release on Tier 2 and Low-Sulfur Gasoline (December 21, 1999)
  
• STAPPA/ALAPCO's Comments on Proposed Heavy-Duty Engine Rule (December 2, 1999)
  
• STAPPA/ALAPCO's Heavy-Duty Engine Testimony (November 2, 1999)
  
• STAPPA/ALAPCO Letter to President Clinton Regarding DOE's Gasoline Sulfur Comments (October 8, 1999)
  
• STAPPA/ALAPCO Comments on Tier 2/Gasoline Sulfur NPRM (July 28, 1999)
  
• STAPPA/ALAPCO House Testimony on Fuel Sulfur (July 21, 1999)
  
• STAPPA/ALAPCO Comments on Diesel Fuel ANPRM (July 13, 1999)
  
• STAPPA/ALAPCO Testimony on Tier 2/Gasoline Sulfur NPRM and Diesel Sulfur ANPRM (June 9, 1999)
  
• STAPPA and ALAPCO Final Comments on Proposed Consent Decrees for HDD Settlement (January 12, 1999)
  

Related Documents

• Press Release on NY’s Adoption of California’s Vehicle Standards for GHG’s (November 9, 2005)
  
• EPA Direct Final Rule and Concurrent Notice of Proposed Rule on Transition to Ultra-Low Sulfur Diesel Fuel (November 9, 2005)
  
• Information on VT’s Adopting of California’s Vehicle Standards for GHG’s (November 7, 2005)
  
• Notice of Proposed Rulemaking on fuel economy standards for light trucks MYs 2008-2001 (August 30, 2005)
  
• Energy Policy Act of 2005 (July 29, 2005)
  
• Federal District Court Opinion Upholding SCAQMD Fleet Rule for Public Fleets (May 5, 2005)
  
• Cleaning Up Diesel Trucks: A Model Rule for States (September 2004)
  
• Engine Manufacturers v. South Coast Air Quality Management District (April 28, 2004)
  
• GAO Report on 2007 Highway Diesel Rule (March 11, 2004)
  
• Letters from EPA Administrator Leavitt to the Presidents of STAPPA and ALAPCO Stating His Support for Reducing Diesel Emissions (March 5, 2004)
  
• EPA's Highway Diesel Progress Review Report #2 (March 4, 2004)
  
• ANPRM on Reforming the Automobile Fuel Economy Standards Program (December 29, 2003)
  
• NAMVECC 2003 Presentations (November 21, 2003)
  
• Final Mobile Sources FACA OBD Policy Workgroup Report (November 2002)
  
• Final Report of the Clean Diesel Independent Review Panel (October 30, 2002)
  
• U.S. District Court Opinion and Order Denying Caterpillar's and Detroit Diesel's Motions for Judicial Review and Modification of Their Heavy-Duty Diesel Consent Decrees (September 6, 2002)
  
• Final NCP Rule for 2004 HDDE Standards (August 1, 2002)
  
• The United States' Memorandum in Opposition to Caterpillar Inc.'s Motion to Amend the Consent Decree and to Resolve the Pull-Ahead Dispute (July 19, 2002)
  
• The United States' Memorandum in Opposition Detroit Diesel Corporation's Motion to Amend the Consent Decree and to Resolve the Pull-Ahead Dispute (July 18, 2002)
  
• Caterpillar Inc. Motion for Judicial Review and Modification of Consent Decrees (July 3, 2002)
  
• U.S. District Court Motion for Judicial Review and Modification of Consent Decrees (July 3, 2002)
  
• ATA Petition for Reconsideration of 2004 HDD Rule (June 19, 2002)
  
• EPA Highway Diesel Progress Review (June 19, 2002)
  
• EPA/DOJ Letter to HDD Engine Manufacturers on Use of AECDs (August 17, 2001)
  
• EPA's Final 2007 Heavy-Duty Diesel Rule (December 21, 2000)
  

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Fuels :  NACAA Positions| Related Documents| Related Links

Gasoline and diesel fuels are complex mixtures of many different chemicals. The precise combination of chemicals determines key fuel properties such as energy content, volatility (i.e., ability to vaporize), and the fuel’s ability to ignite and burn in the engine. In turn, the various fuel properties effect vehicle emissions, performance, and fuel cost. Fuel producers have developed different gasoline and diesel formulations designed for specific vehicle and engine technologies, to provide adequate vehicle performance and decreased emissions at a reasonable cost. In fact, a vehicle and its fuel should be viewed as an integrated system, with fuel properties designed to match specific engine technologies, and vice versa. Fuel standards can also be designed to control specific pollutants. Depending upon the air quality conditions in a particular local area, fuel properties can be adjusted to reduce CO, hydrocarbon and/or NO_x emissions from vehicles. Some areas change their fuel formulations on a seasonal basis to address wintertime CO and summertime ozone problems. In many instances adopting new fuel standards can bring about immediate, cost-effective emission reductions, without making changes to an area’s vehicle fleet. Other fuel changes may be designed for the introduction of new, cleaner vehicles over the long-term. Alternatives to traditional fuels include compressed natural gas, biodiesel, ethanol, liquefied natural gas, methanol and propane. Further, hydrogen has been identified as a potential “fuel of the future,” with little to no net emissions. The advent of fuel cells as a potentially viable power source for vehicles has further raised the interest in hydrogen as a fuel.

NACAA Positions

• NACAA Comments to EPA on Proposed Rule to Determine Widespread Use of Onboard Refueling Vapor Recovery (September 13, 2011)
  
• NACAA Comments on EPA’s E15 Waiver Decision and Proposed Rule to Mitigate Misfueling (January 3, 2011)
  
• NACAA Letter to EPA Urging Action on General Aviation Lead Emissions (February 10, 2010)
  
• NACAA Comments on EPA's Proposed Renewable Fuel Standard Program (September 24, 2009)
  
• NACAA Testimony on EPA’s Proposed Renewable Fuel Standard Program (June 9, 2009)
  
• STAPPA/ALAPCO Testimony on Draft House Legislation, “Boutique Fuel Reduction Act of 2006” (June 7, 2006)
  
• STAPPA/ALAPCO Letter to House of Representatives Opposing H.R. 3893, the “GAS Act”, as Revised by Manager’s Amendment (October 7, 2005)
  
• STAPPA/ALAPCO Letter to House of Representatives Opposing H.R. 3893, the “GAS Act” (October 6, 2005)
  
• STAPPA/ALAPCO Letter to House Committee on Energy and Commerce on H.R. 3983, the ”Gasoline for America’s Security Act of 2005” (September 27, 2005)
  
• STAPPA/ALAPCO Letter Supporting the Diesel Emissions Reduction Act of 2005 (June 14, 2005)
  
• STAPPA/ALAPCO Letter to Congress Opposing Two Provisions of the House Energy Policy Act of 2005 (April 11, 2005)
  
• Letter to Congress Opposing H.R. 4545, The Gasoline Price Reduction Act of 2004 (June 15, 2004)
  
• STAPPA and ALAPCO’s Comments on EPA’s Nonroad Diesel Engine and Fuel Proposal (August 20, 2003)
  
• STAPPA/ALAPCO Testimony on EPA’s Nonroad Diesel Engine and Fuel Proposal (June 10, 2003)
  
• STAPPA/ALAPCO Press Release on EPA Nonroad Diesel Engine and Fuel Proposal (April 15, 2003)
  
• STAPPA/ALAPCO Letter to EPA Urging Denial of Petitions to Reconsider 2004 Onroad HDD Rule (February 6, 2003)
  
• Letter to EPA Administrator Whitman on Nonroad Engines (June 25, 2002)
  
• STAPPA/ALAPCO Report on Health and Welfare Impacts of Nonroad HDD Engines and Fuels (June 10, 2002)
  
• STAPPA/ALAPCO Congressional Testimony on CAA Implementation (June 5, 2002)
  
• STAPPA/ALAPCO, ALA and NRDC Letter to EPA Administrator Whitman Urging Against Changes to Panel to Review Progress in Developing Technology for 2007 HDD Rule (May 20, 2002)
  
• Joint Letter to EPA Administrator Whitman Urging Promulgation of Strong Nonroad Heavy Duty Diesel Regulation (April 22, 2002)
  
• STAPPA/ALAPCO Comments on EPA's October 23, 2001 'Boutique Fuels' Staff White Paper (January 30, 2002)
  
• STAPPA/ALAPCO Comments on Nonroad HDDE Staff Paper (January 3, 2002)
  
• Intervenors' Brief In Support of 2007 Diesel Rule (December 14, 2001)
  
• STAPPA/ALAPCO/NESCAUM Letter on Nonroad HDDs (September 4, 2001)
  
• STAPPA/ALAPCO Letter to EPA on Boutique Fuels (July 24, 2001)
  
• STAPPA/ALAPCO Conditional Motion to Intervene in HDDCD Litigation (May 16, 2001)
  
• STAPPA/ALAPCO Comments on Nonroad ANPRM (January 31, 2001)
  
• Letter to President Clinton Supporting 15-ppm Diesel Sulfur Cap (December 6, 2000)
  
• STAPPA/ALAPCO's Statement on Diesel Exhaust before CASAC (October 12, 2000)
  
• STAPPA/ALAPCO Press Release on Clean Diesel Fuel (October 3, 2000)
  
• STAPPA/ALAPCO Comments on Mobile Source Air Toxics Proposal (September 20, 2000)
  
• STAPPA/ALAPCO's Statement at EPA Mobile Source Air Toxics Public Meeting (August 21, 2000)
  
• STAPPA and ALAPCO August 17, 2000 Comments on EPA's Draft Tier 2 Offset Guidance (August 17, 2000)
  
• STAPPA/ALAPCO Letter to EPA on Diesel Particulate (August 15, 2000)
  
• STAPPA/ALAPCO's Final Comments on EPA's Notice of Proposed Rulemaking on Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements (August 14, 2000)
  
• STAPPA/ALAPCO’s Testimony on EPA’s HDE/Low-Sulfur Diesel NPRM (June 19, 2000)
  
• STAPPA/ALAPCO Analysis on Cancer Risk from Diesel Particulate (March 15, 2000)
  
• STAPPA/ALAPCO Recommendations to EPA on Mobile Source Air Toxics (February 16, 2000)
  
• STAPPA/ALAPCO Letter to EPA Administrator Carol Browner on the Regulation of Heavy-Duty Diesel Engines and Fuels (January 18, 2000)
  
• STAPPA/ALAPCO News Release on Tier 2 and Low-Sulfur Gasoline (December 21, 1999)
  
• STAPPA/ALAPCO's Comments on Proposed Heavy-Duty Engine Rule (December 2, 1999)
  
• STAPPA/ALAPCO's Heavy-Duty Engine Testimony (November 2, 1999)
  
• STAPPA/ALAPCO Letter to President Clinton Regarding DOE's Gasoline Sulfur Comments (October 8, 1999)
  
• STAPPA/ALAPCO Comments on Tier 2/Gasoline Sulfur NPRM (July 28, 1999)
  
• STAPPA/ALAPCO House Testimony on Fuel Sulfur (July 21, 1999)
  
• STAPPA/ALAPCO Comments on Diesel Fuel ANPRM (July 13, 1999)
  
• STAPPA/ALAPCO Testimony on Tier 2/Gasoline Sulfur NPRM and Diesel Sulfur ANPRM (June 9, 1999)
  

Related Documents

• Barton Manager's Amendment to H.R. 3893 "The Gasoline for America's Security Act"
  
• S. 1772, Senator Inhofe’s “Gasoline PRICE Act” (September 26, 2005)
  
• Energy Policy Act of 2005 (July 29, 2005)
  
• Diesel Emissions Reduction Act of 2005 (June 16, 2005)
  
• Final EPA Nonroad Diesel Engine and Fuel Rule (June 29, 2004)
  
• EPA's Boutique Fuels Study (October 24, 2001)
  
• NTE Model Rule (November 2000)
  

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Other Engines and Equipment :  NACAA Positions| Related Documents| Related Links

Construction and farm equipment, airplanes, ships and boats, locomotives, lawn and garden equipment, mobile generators and pumps, and other miscellaneous small hand-held, self-propelled, trailer or skid-mounted equipment not intended for on-road use comprise the category called “nonroad" mobile sources. These sources contribute substantial levels of emissions and, as emission controls on automobiles, trucks, and buses become more prevalent, the relative amount of air emissions generated by nonroad sources will become even more significant.

NACAA Positions

• NACAA Comments on EPA’s ANPR on Lead Emissions from Piston-Engine Aircraft Using Leaded Aviation Gasoline (August 25, 2010)
  
• NACAA Letter to EPA Urging Action on General Aviation Lead Emissions (February 10, 2010)
  
• NACAA's Comments on EPA's Proposed Rule to Regulate Emissions from New Ocean-Going (C3) Vessels (September 25, 2009)
  
• C3 Engines - NACAA Testimony on EPA's Proposed Rule to Regulate Emissions from New Ocean-Going (C3) Vessels (August 4, 2009)
  
• C3 Marine Engines - "Protecting Public Helath from Global Shipping Pollution,: Report by NACAA, Environmental Defense, American Lung Association and Puget Sound Clean Air Agency (March 30, 2009)
  
• NACAA Comments on EPA’s ANPRM on Category 3 Marine Engines (March 5, 2008)
  
• VIN Requirements – NACAA Comments to NHTSA on Proposal to Amend Vehicle Identification Number Regulations (November 16, 2007)
  
• Locomotive-Marine Diesel Engines: NACAA Letter to EPA Administrator Stephen Johnson Urging Prompt EPA Action on Final Locomotive and Marine Diesel Engine Rule (October 23, 2007)
  
• NACAA Comments on EPA's Proposed Rule to Control Emissions of Nonroad Spark-Ignitions Engines and Equipment (August 1, 2007)
  
• NACAA Testimony on EPA's Proposed Rule to Control Emissions from Nonroad Spark-Ignition Engines and Equipment (June 5, 2007)
  
• Locomotive-Marine Diesel Engines - NACAA's Testimony on EPA's Locomotive-Marine Diesel Engine Proposed Rule (May 8, 2007)
  
• Coalition Letter to President Bush Requesting FY 2008 Funding for DERA and STAG Air Grants (December 1, 2006)
  
• NACAA's Petition for Review of EPA's Aircraft Rule -- Initial Reply Brief (October 26, 2006)
  
• "Danger in Motion: It's Time to Clean Up Trains and Boats" - STAPPA/ALAPCO Report and Related Materials (February 2, 2006)
  
• STAPPA/ALAPCO Letter to NRC Committee Supporting Preservation of States’ Rights (July 19, 2005)
  
• STAPPA/ALAPCO Letter to Senate Appropriations Committee Opposing Rider to Block Small Nonroad Engine Rule (June 8, 2005)
  
• STAPPA/ALAPCO Letter to EPA and FAA Withdrawing from Aviation Stakeholder Process (November 22, 2004)
  
• STAPPA/ALAPCO Comments on EPA’s ANPRM for Diesel Locomotive and Marine Engine Standards (August 30, 2004)
  
• STAPPA/ALAPCO Aircraft Comments (December 15, 2003)
  
• STAPPA/ALAPCO Testimony on EPA Proposed Rule on the Control of Air Pollution from Aircraft and Aircraft Engines (November 13, 2003)
  
• STAPPA and ALAPCO’s Comments on EPA’s Nonroad Diesel Engine and Fuel Proposal (August 20, 2003)
  
• STAPPA/ALAPCO Testimony on EPA’s Nonroad Diesel Engine and Fuel Proposal (June 10, 2003)
  
• STAPPA/ALAPCO Press Release on EPA Nonroad Diesel Engine and Fuel Proposal (April 15, 2003)
  
• STAPPA/ALAPCO Comments on Motorcycle and Recreational Boat NPRM (December 19, 2002)
  
• STAPPA/ALAPCO Final Comments on EPA's Proposed Rule for Category 3 Diesel Marine Engines (July 16, 2002)
  
• Letter to EPA Administrator Whitman on Nonroad Engines (June 25, 2002)
  
• STAPPA/ALAPCO Report on Health and Welfare Impacts of Nonroad HDD Engines and Fuels (June 10, 2002)
  
• STAPPA/ALAPCO Congressional Testimony on CAA Implementation (June 5, 2002)
  
• Joint Letter to EPA Administrator Whitman Urging Promulgation of Strong Nonroad Heavy Duty Diesel Regulation (April 22, 2002)
  
• STAPPA/ALAPCO Comments on Nonroad SI and Recreational Engines NPRM (January 18, 2002)
  
• STAPPA/ALAPCO Comments on Nonroad HDDE Staff Paper (January 3, 2002)
  
• STAPPA/ALAPCO Testimony on EPA's October 5, 2001 Nonroad Large Spark Ignition and Marine and Land-Based Recreational Engines NPRM (October 24, 2001)
  
• STAPPA/ALAPCO/NESCAUM Letter on Nonroad HDDs (September 4, 2001)
  
• STAPPA/ALAPCO Comments on Nonroad ANPRM (January 31, 2001)
  
• STAPPA/ALAPCO's Statement on Diesel Exhaust before CASAC (October 12, 2000)
  
• STAPPA/ALAPCO Letter to EPA on Diesel Particulate (August 15, 2000)
  
• STAPPA/ALAPCO Analysis on Cancer Risk from Diesel Particulate (March 15, 2000)
  
• STAPPA/ALAPCO Comments on Proposed Marine Engines Rule (March 11, 1999)
  
• STAPPA/ALAPCO Comments on EPA's amended April 17, 1998 Locomotive Proposal (June 16, 1997)
  

Related Documents

• OGVs – Final EPA Rule for Ocean-Going Vessels (December 22, 2009)
  
• CMAQ Guidance - FHWA Interim Program Guidance (October 31, 2006
  
• Amicus Brief of the Air Transport Association of America and the Aerospace Industries Association, in STAPPA and ALAPCO v. EPA, Petition for Review of EPA's Aircraft Engine Emission Standards (October 12, 2006)
  
• EPA Final Aircraft Emissions Rule (November 9, 2005)
  
• Final EPA Nonroad Diesel Engine and Fuel Rule (June 29, 2004)
  
• EPA ANPRM on the Control of Emissions from Diesel Locomotive and Marine Engines (June 29, 2004)
  
• EPA’s Final Nonroad Diesel Engine Rule (May 11, 2004)
  
• Impacts of Senator Bond’s Nonroad Exemption Provision on States and Localities (September 16, 2003)
  
• Closing the Diesel Divide: Protecting Public Health from Diesel Air Pollution (April 15, 2003)
  
• EPA’s Final Rule for C3 Marine Engines (January 31, 2003)
  
• EPA's Proposed Emission Standards for Highway Motorcycles and Gasoline-Powered Recreational Boats (July 25, 2002)
  

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Transportation Planning :  NACAA Positions| Related Documents| Related Links

The rate of growth of on-road driving has resulted in the need to address traffic flow and vehicle use throughout the world. Congestion increases air pollution emissions and reduces the productivity of individuals who must spend time in traffic. Efforts to reduce driving and congestion through better planning, mass transit systems, carpooling and other measures are of interest in all major urban areas. The U.S. has had a particularly difficult time in addressing the problem of increased driving and vehicle miles traveled. Many developing countries are facing the same problems with a similar lack of success. Programs continue to be developed worldwide to address this growing dilemma.

NACAA Positions

• NACAA Principles for Reauthorization of Federal Surface Transportation Legislation (October 19, 2010)
  
• STAPPA/ALAPCO Letter to Senate Opposing Highway Bill Amendment to Reduce CMAQ Funding (May 16, 2005)
  
• STAPPA/ALAPCO Letter to House Armed Services Committee Leaders Opposing Right of Removal of CAA Cases to Federal Court (May 16, 2005)
  
• STAPPA and ALAPCO Letters to Congress Opposing CAA Exemptions for DOD Activities (May 9, 2005)
  
• STAPPA/ALAPCO Letter to Congress Opposing Two Provisions of the House Energy Policy Act of 2005 (April 11, 2005)
  
• STAPPA/ALAPCO Testimony on Transportation Conformity/CMAQ (March 2, 2005)
  
• STAPPA/ALAPCO’s Final Comments on EPA’s Supplemental Proposal on Transportation Conformity Hot-Spots Analyses in PM Nonattainment and Maintenance Areas (January 26, 2005)
  
• STAPPA/ALAPCO Comments in Support of on California’s Request for a Waiver of Federal Preemption for 2007 Onroad Diesel Rule (January 24, 2005)
  
• STAPPA/ALAPCO Letter to EPA Urging Action to Ensure Diesel Engine Reflash (December 15, 2004)
  
• STAPPA/ALAPCO Letter to EPA and FAA Withdrawing from Aviation Stakeholder Process (November 22, 2004)
  
• STAPPA/ALAPCO Comments on EPA’s ANPRM for Diesel Locomotive and Marine Engine Standards (August 30, 2004)
  
• Letter to House and Senate Transportation Conferees Regarding Transportation Conformity and Related Issues (June 18, 2004)
  
• STAPPA/ALAPCO Comparison of Air-Related Provisions of Senate and House Transportation Bills (May 10, 2004)
  
• STAPPA/ALAPCO Congressional Testimony Opposing Exemptions from the Clean Air Act for DOD (April 21, 2004)
  
• STAPPA/ALAPCO Comments on Senate EPW Transportation Bill (January 28, 2004)
  
• STAPPA and ALAPCO’s Comments on EPA’s Proposed Amendments to the Transportation Conformity Program to Implement the 8-hour Ozone and PM2.5 NAAQS (December 22, 2003)
  
• Letter Opposing SAFETEA Provisions on Conformity and CMAQ (November 13, 2003)
  
• STAPPA/ALAPCO Testimony on CMAQ and Conformity Before the Senate Environment and Public Works Subcommittee on Clean Air, Climate Change and Nuclear Safety (March 13, 2003)
  
• STAPPA/ALAPCO Letters to House Armed Services Committees Opposing CAA Exemptions for DOD Military Readiness Activities (March 12, 2003)
  
• STAPPA/ALAPCO Letters to Senate Armed Services Committees Opposing CAA Exemptions for DOD Military Readiness Activities (March 12, 2003)
  
• STAPPA and ALAPCO Adopt CMAQ and Transportation Conformity Principles (October 1, 2002)
  
• STAPPA/ALAPCO Letter to Senate Armed Services Committee on DOD Environmental Waivers (May 2, 2002)
  
• STAPPA/ALAPCO Letter to House Armed Services Committee on DOD Environmental Waivers (May 2, 2002)
  

Related Documents

• CMAQ Guidance - Transmittal Memorandum for FHWA Interim Program Guidance (October 31, 2006)
  
• Transportation Emissions Guidebook: Land Use, Transit and Travel Demand Management (August 22, 2005)
  
• The Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy For Users (July 29, 2005)
  
• Final Transportation Conformity Rule on PM2.5 Precursors (May 2, 2005)
  
• EPA Supplemental Proposal of Options for PM2.5 and PM10 Hot-Spot Analyses for the Transportation Conformity Rule Amendments (December 7, 2004)
  
• Cleaning Up Diesel Trucks: A Model Rule for States (September 2004)
  
• DOT Letter to House and Senate Transportation Conferees Outlining the Administration's Position on Key Issues (June 22, 2004)
  
• EPA's Final Transportation Conformity Rule Amendments (June 14, 2004)
  
• Manager’s Amendment to H.R. 3550, the House Transportation Bill (March 30, 2004)
  
• ECOS Letter on Conformity and CMAQ (March 17, 2004)
  
• Letter from Environmental Organizations to Governors on Reauthorization of TEA-21 (March 27, 2003)
  
• EPA/FAA General Conformity Guidance for Airports (September 25, 2002)
  
• Amendments to Transportation Conformity Rule (July 31, 2002)
  
• NAS Study of CMAQ Effectiveness (April 19, 2002)
  

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