Evaporative Emission Standards for Boats. Presented By: John McKnight Director of Environmental & Safety Compliance December 2008. Overview of new program Evaporative emission types New Standards Program details Small businesses Certification Questions. Outline. Final Rule.
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Evaporative EmissionStandards for Boats
Presented By:John McKnightDirector of Environmental & Safety ComplianceDecember 2008
Evaporative emission types
(diurnal, hot soak, running loss)
(fuel tank, hoses, other)
Three decades of automotive evaporative emission control
(full vehicle test/standards)
Nonroad equipment are just now becoming subject to evaporative emission control
Fuel and tank permeation
Component test for diurnal control
Large SI equipment (2007)
Recreational vehicles (2008)
Portable gas cans (2009)Existing Nonroad Standards
Small SI as well
a2011 for primer bulbs. Phase-in for under cowl fuel lines, by length, on OB engines: 30% 2010, 60% 2011, 90% 2012, 100% 2015.
b Design standard.
c Fuel tanks installed in nontrailerable boats (> 26 ft. in length or >8.5 ft. in width) may meet a standard of 0.16 g/gal/day over an alternative test cycle.
d The standard is effective July 31, 2011. For boats with installed fuel tanks, this standard is phased-in 50%/100% over the first two years. As an alternative, small manufacturers may participate in a diurnal allowance program.
Small Business Provisions
Seal tank (up to 1.0 psi)
Can use pressure mitigation (e.g. bladder)
Passive-purge carbon canister
Prevent fuel from entering canister
Carbon and canister specificationsTechnical Approaches
1. Go to http://www.epa.gov/otaq/marinesi.htmHow to Download the Rule
2. Under “Regulations and Guidance,” click on Final Rule.
3. The Final Rule will be a PDF document.
4. Go to Federal Register page 59298, which is actually page 266 in the document.
email@example.com or 202-737-9757
Three communication programs in late January 2009
Component Manufacturer Workshop
Web based workshop for boat buildersOther Resources