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) Diurnal Result (grams HC/day) Hot Soak Result (grams HC/test) Refueling Emissions (grams HC) Fuel Tank Volume (Gallons) 92 Yamaha Wave Runner PWC 13.935.7110.5 91 Sea Doo XP PWC23.697.2210.0 01 Yamaha Wave Runner PWC 6.761.554.8 77 Evinrude Out Board19.636.146.6 01 Mercury Out Board26.764.9189.3531.0 00 Johnson Out Board49.8613.2235.0 77 Schuster Stern Drive48.0415.9511.0 96 Yamaha Stern Drive37.4910.0935.0 02 GM 4.3 L Stern Drive22.993.6688.9829.0 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