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November 14, 2007

This workshop outlines the proposed changes for Small Off-Road Engines (SORE) and Large Spark-Ignition (LSI) engines with less than or equal to one liter in displacement. It discusses the background, proposed changes for SORE credits, emission durability period, credit lifetime, discounting credits, existing credits, and other changes. Additionally, it addresses the proposed changes for LSI ≤ 1L engines including exhaust and evaporative emission standards, optional standards, and contact information for providing comments.

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November 14, 2007

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  1. Small Off-Road Engines and Large Spark-Ignition Engines with less than or equal to One Liter in Displacement Workshop November14, 2007

  2. Outline Background: SORE Proposed changes for SORE Background: LSI Proposed changes for LSI ≤ 1 liter displacement

  3. Background: SORE Credits • Production emission credits established in 1998 to provide flexibility during transitional period of emission standard changes • U.S. EPA considered use of production emission credits at the time, but ultimately did not adopt

  4. Proposed Changes: SORE Credits • Elimination of Production Credits • No other program uses Production Credits • U.S. EPA does not use Production Credits • Benefit of compliance margin returns to public • Retention of Certification Credits

  5. Proposed Changes: SORE Emission Durability Period • Limit durability period to five years or current number of hours, whichever comes first

  6. Proposed Changes: SORE Credit Lifetime • Credit lifetime would approximate useful life of equipment/engine (i.e., 5 years) • U.S. EPA is also considering limiting credit life

  7. Proposed Changes: SORE Discounting Credits • Credits would be discounted by 20% each year • Encourage manufacturers to use credits early • Encourage manufacturers to introduce cleaner engines earlier

  8. Proposed Changes: SORE Existing Credits • Manufacturers who currently own credits would have five years to use the credits • Credits were expected to be used to ease burden of compliance during transitional period from Tier 1 to Tier 2, but ended up being banked for years

  9. Proposed Changes: SORE Other Changes • Require English language contact for warranty concerns • Enforcement Bond to ensure anyone selling is doing so in good faith

  10. Background: LSI ≤ 1 Liter • May 2006, Board approved more stringent emission standards for LSI • LSI ≤ 1 liter displacement not addressed at that time

  11. Current HC+NOx Standards Standards in g/kW-hr LSI > 1 liter LSI ≤ 1 liter SORE ≥225cc SORE 80-225cc

  12. Proposed Changes: LSI ≤ 1 LiterExhaust Emission Standards

  13. Proposed HC+NOx Standards Standards in g/kW-hr LSI > 1 liter LSI ≤ 1 liter SORE ≥ 225cc SORE 80-225cc

  14. Proposed Changes: LSI ≤ 1 LiterEvaporative Emission Standards • Required to meet >225cc SORE evaporative emission standards for the near term • This may require the use of low permeation hoses, fuel tanks, and evaporative canisters • May choose performance-based or design-based standards

  15. Proposed Changes: LSI ≤ 1 LiterOptional Standards • Would open possibility of funding programs • What should the standards be?

  16. Information and Contact Information • Board Hearing expected in Spring 2008 Please send comments to Yun Hui Park email: ypark@arb.ca.gov Or call: (626)450-6263

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