Yellowstone National Park - Snowmobile Best Available Technology (BAT) List (U.S. National Park Service)

Snowmobiles Meeting Yellowstone and Grand Teton National Parks’
Best Available Technology (BAT) Requirements

February 2008

Snowmobile	Air Emissions (g/kW-hr)		Sound Emissions (dBA)
Snowmobile	Hydrocarbons	Carbon Monoxide	Sound Emissions (dBA)
Average 2-Stroke (Non-BAT)	150	400	78
BAT Requirements	15**	120**	73*
2002 Arctic Cat 4-Stroke Touring and Trail models	6.20	79.95	71.3-72.0
20021 Polaris Frontier Touring	3.19	79.15	74.6
2003 Arctic Cat 4-Stroke Touring and Trail models	7.55	95.40	70.1-72.2
2003 Bombardier Ski-Doo Legend Sport GT V1000, equipped with BAT upgrade	6.12	92.93	72.3
2003 Polaris Frontier Classic and Touring models	5.4	111.6	74.3
2004 Arctic Cat T660 Touring	5.62 FEL: 10	92.30 FEL: 115	71.75
2004 Bombardier Ski-Doo Elite SE, equipped with the Elite BAT upgrade	4.65	103.16	74.8
2004 Bombardier Ski-Doo Legend Sport GT V1000, equipped with BAT upgrade	6.12	92.93	72.3
2004 Polaris Frontier Classic and Touring models	5.4 FEL: 10	111.6 FEL: 140	73.2-73.7
2005 Arctic Cat Bearcat W/T	5.62 FEL: 8	92.30 FEL: 105	73.7
2005 Arctic Cat T660	5.62 FEL: 8	92.30 FEL: 105	72.2
2005 Bombardier Ski-Doo Legend Sport GT V1000, equipped with BAT upgrade	4.65 FEL: 6.5	92.93 FEL: 120	71.8
2005 Polaris Frontier Touring	5.4 FEL: 10	111.6 FEL: 120	73.7
2006 Arctic Cat Bearcat 660 W/T	FEL: 8	FEL: 105	74.5
2006 Arctic Cat Panther 660 Touring and Trail models	FEL: 8	FEL: 105	73.9
2006 Arctic Cat 660 Touring	FEL: 8	FEL: 105	72.2
2006 Polaris FS Classic and FS IQ Touring	9.8 FEL: 15	98.4 FEL: 120	75
2006 Yamaha RS Venture Touring with BAT kit	FEL: 10	FEL: 120	71.9
2007 Arctic Cat Bearcat 660 W/T, Panther 660 Touring, Panther 660 Trail, 660 Touring	FEL: 8	FEL: 105	Same as 2006 models
2007 Bombardier Ski-Doo Legend Trail, Legend Touring, Expedition Sport V800, Skandic Tundra V800	FEL: 8	FEL: 120	72-73.9
2007 Polaris FS IQ Touring	FEL: 15	FEL: 120	75
2007 Yamaha RS Venture and RS Vector, equipped with BAT kit	FEL: 10	FEL: 120	71.9
2008 Arctic Cat 660 Touring, Bearcat 660 W/T and Panther 660 Touring	FEL: 8	FEL: 105	Same as 2006 models
2008 Bombardier Ski-Doo Legend Trail, Legend Touring, Expedition Sport V800, Tundra, Expedition TUV, Skandic SWT	FEL: 8	FEL: 120	70.1-71.9
2008 Yamaha RS Venture and RS Vector, equipped with BAT kit	FEL: 10	FEL: 120	71.9
2008 Polaris FS IQ Touring	FEL: 15	FEL: 120	75

2002 model year snowmobile BAT certification will expire at the conclusion of the 2007-2008 winter season

Notes

Once approved, a snowmobile would generally be certified in Yellowstone as BAT for a period of six years. On Jackson Lake in Grand Teton, a snowmobile would be certified as BAT for six years or 6,000 miles, whichever is greater, not to exceed 10 years regardless of mileage.
Air emission figures presented are either the Official Test Results (OTR) or the certified FEL. The Official Test Results are actual measured emissions. The FEL’s are not-to-exceed levels as certified by EPA.
Sound emission figures represent an average of Official Test Results.
The 2004 Bombardier Ski-Doo Elite SE and the 2003-2005 Legend Sport GT V1000 must be equipped with BAT upgrade kits in order to meet BAT requirements. The upgrade kits lowers emissions levels by controlling the maximum throttle body opening and uses different software for the snowmobile’s electronic control unit.

* Society of Automotive Engineers testing procedures allow for a 2 dB tolerance over the sound level limit to provide for variations in test site, temperature gradients, wind velocity gradients, test equipment, and inherent differences in nominally identical vehicles. (It has been observed that under some test site conditions, variability in test results greater than 2 dB can be experienced.)

** Hydrocarbons: certified by EPA to a Family Emissions Limit (FEL) of 15 g/kW-hr or less.
** Carbon Monoxide: certified by EPA to a Family Emissions Limit (FEL) of 120 g/kW-hr or less.