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ARB’s Intent to Establish Evaporative Emission Standards for Pleasure Craft

The California Air Resources Board (ARB) is considering setting evaporative emission standards for pleasure craft due to the need for significant air quality improvements in the state. With a large population of pleasure craft in California, estimated at 850,000, the emissions from these watercraft contribute to the overall pollution. The ARB plans to evaluate control technologies such as carbon canisters, low permeation fuel hoses, and tanks to reduce these emissions. They have conducted baseline testing and are open to industry-generated data to determine standards. The next steps include workshops, inventory development, technology evaluation, and proposal development before a board hearing in early 2008. For more information or to provide comments, reach out to the designated contacts at the ARB.

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ARB’s Intent to Establish Evaporative Emission Standards for Pleasure Craft

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  1. ARB’s Intent to Establish Evaporative Emission Standards for Pleasure Craft NMMA/ARB Meeting Feb. 7, 2006

  2. Why is ARB Considering Evaporative Emission Standards for Pleasure Craft? • California needs significant additional emission reductions to attain ambient air quality standards. • There is a large population of pleasure craft within California (estimated at 850,000). • Evaporative emissions from pleasure craft are estimated to be 22 tons per day (annual average). • Cost effective solutions may be available.

  3. Potential Control Technologies to be Evaluated • Active and passively purged carbon canisters • Low permeation fuel hoses • Low permeation fuel tanks • Insulation

  4. ARB’s Baseline Evaporative Emissions Testing • ARB conducted baseline evaporative emissions testing on nine pleasure craft • Diurnal, hot soak, and some refueling data were generated • Running loss data is needed to complete the emissions inventory

  5. ARB’s Evaporative Emissions Testing (Continued) Note: Complete boats and PWC were tested in SHEDs.

  6. NMMA’s Evaporative Emissions Testing • ARB is willing to consider industry generated data to help determine potential standards • ARB is requesting that NMMA share its evaporative emissions data

  7. Next Steps for Rule Development(Tentative) • Initial Workshop • March 2006 • Emissions Inventory Development • Spring 2006 – Spring 2007 • Control Technology Evaluation • Summer 2006 – Summer 2007 • Development of Staff Proposal • Summer 2007 – Winter 2007 • Board Hearing • Early 2008

  8. Comments?

  9. Contacts Monitoring and Laboratory Division (For Questions Concerning the Rule Development) • Jim Watson • Manager, Engineering Development and Testing Section • (916) 327-1282, jwatson@arb.ca.gov • Donald Ridgley • Project Lead,Engineering Development and Testing Section • (916) 322-8913, dridgley@arb.ca.gov Planning and Technical Support Division (For Questions Concerning the Emissions Inventory) • David Chou • Manager, Off-Road Modeling and Assessment Section • (626) 450-6136, cchou@arb.ca.gov

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