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Evaporative EmissionStandards for Boats

Evaporative Emission Standards for Boats

Office of Transportation and Air Quality

IBEX MeetingOctober 2011

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Marine Evap Standards

Standard/Category

Hose Permeation

Tank Permeation Diurnal

Standard level 15 g/m2/day 1.5 g/m2/day 0.40 g/gal/dayPortable tanks 2009a 2011 2010b

PWC 2009 2011 2010Other tanks 2009a 2012 2011c,d

a 2011 for primer bulbs. Phase-in for OB under-cowl fuel lines, by length: 30% in 2010, 60% in 2011, 90% in 2012, 100% in 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.

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Marine Diurnal Transition

• Vessels manufacturers may produce proscribed number of diurnal-exempt vessels– Small Volume Exemption

• 1,200 vessels between July 31, 2011 and July 31, 2013– Other Exemption

• 50% of production volume between July 31, 2011 and July 31, 2012

• Notifications sent to EPA by July 31, 2011– 220 boat builders participating

• 204 using 1,200 vessel option• 16 using % of production option

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Inventory Control

• Manufacturers may exhaust fuel tank and engine inventory, per 1060.605(f)

• In Model Year 2012, vessel with 2011 model year engine may use high permeation fuel tank

• In Model Year 2013, vessel must meet all evaporative regulations, regardless of engine model year installed in vessel

• Diurnal system standards apply on July 31, 2011, with no inventory provisions

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Inventory Examples

• Vessel Manufacturer purchases 2011 model year engines through Dec 31, 2011– High permeation fuel tanks– Certified diurnal system required unless vessel manufacturer is

participating in Marine Diurnal Transition Program• On Jan 1, 2012, Vessel Manufacturer has 2011 engines and

fuel tanks in stock– Vessels with 2011 engines may use high permeation fuel tanks– Vessel Manufacturer allowed to exhaust fuel tanks in stock

• On Aug 1, 2012, Vessel Manufacturer begins building 2013 model year vessels– Certified, low permeation fuel tanks required– Certified diurnal system required unless vessel manufacturer is

participating in Marine Diurnal Transition Program

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Vessel Labels• 2012 Model Year Vessel Label

– Statement, “MEETS EPA EVAP STANDARDS USING CERTIFIED COMPONENTS”

– Corporate name and trademark– Label not required on 2012 model year vessels with 2011 model year

engines• Diurnal-exempt label

– Heading “EMISSION CONTROL INFORMATION”– Corporate name and trademark– Vessel’s date of manufacture in Month and Year format

• For vessels with inboard engines, date of manufacture is when engine is installed• For vessels with outboard motors, date of manufacture is when fuel tank is installed

– Statement, “THIS VESSEL IS EXEMPT FROM DIURNAL STANDARDS UNDER 40 CFR 1045.625”

– Label can be separate or combined with above label• Either or both labels can be combined with Coast Guard label

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Refueling Auto Shut-off

• Per EPA regulations, all new fuel nozzles purchased by marinas must have automatic shut-offs

• EPA requires vessel manufacturers use good engineering judgment to ensure no fuel spillage or spitback occurs during refueling event

• If fuel system meets ABYC H-24 provisions, then the vessel will also meet EPA requirements

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E10/E15 as Certification Fuel?

• EPA is expecting to propose a new certification fuel for cars and light-trucks at the end of 2011– Likely to propose a 15% ethanol/gasoline (E15) blend– EPA recently approved a waiver for E15 and expects use

to grow significantly in coming years• EPA is considering proposing the new certification

fuel for all nonroad categories that use gasoline– Apply to Marine SI, Small SI, Large SI, and Rec Vehicles– Apply to both exhaust and evaporative emissions

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E10/E15 as Certification Fuel?

• For nonroad categories, EPA has explored three options– E15– E10 initially, then move to E15 after market review indicates E15 is a

“significant” fraction of fuel sold– E10

• EPA would allow multiple years for manufacturers to re-certify their products on the new fuel– Open to allowing carryover of existing CE10/E10 data from fuel tank

and fuel line permeation testing

• No decisions have been made yet• Proposal will be available on EPA website after signature

– http://www.epa.gov/otaq/hwy.htm