Meet Enhanced Emission Standards

Reporting and Recordkeeping for Snowcoaches and Snowmobiles, Yellowstone National Park

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

Meet Enhanced Emission Standards

OMB: 1024-0266

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11/4/2019

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

The “New BAT” designation refers to a snowmobile that meets the park’s Best Available Technology (BAT)
standard. As of December 15th, 2015, all snowmobiles entering the park must operate at or below 67 dBA and
must be certified to a Family Emission Limit (FEL) no greater than a total of 15 g/kW-hr for hydrocarbons and 90
g/kW-hr for carbon monoxide. A snowmobile will be certified for six consecutive winter seasons following its
manufacture or until the snowmobile travels 6,000 miles, whichever occurs later. See the table below for a list of
approved snowmobiles.
View a list of local businesses that rent New BAT snowmobiles.

Approved Snowmobiles - Model Years 2015-2020
Snowmobile

Air Emissions (g/kW-hr)

Sound
Carbon

Emissions

Monoxide

(dBA)

6

90

67

6

75

67

6

90

67

Hydrocarbons
2020 - Bombardier (Engine Family
LBCXY.6007)
Tundra Sport 600 ACE
Tundra LT 600 ACE
2020 - Bombardier (Engine Family
LBCXY.6007GF)
Grand Touring Sport 600 ACE
2020 - Bombardier (Engine Family
LBCXY.8997GF)
Grand Touring Limited 900 ACE
Grand Touring Sport 900 ACE
Expedition LE 900 ACE
Expedition SE 900 ACE
2019 - Bombardier (Engine Family
KBCXY.6007GF)
Renegade Sport 600 ACE
Grand Touring Sport 600 ACE
Tundra Sport 600 ACE
Tundra LT 600 ACE
Expedition Sport 600 ACE
2019 - Bombardier (Engine Family
KBCXY.8997GF)
Grand Touring Limited 900 ACE
2018 - Bombardier (Engine Family
JBCXY.6007GF)

https://www.nps.gov/yell/planyourvisit/newbatlist.htm

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

MX-Z Sport 600 ACE
Renegade Sport 600 ACE
Grand Touring Sport 600 ACE
Tundra Sport 600 ACE
Tundra LT 600 ACE
Expedition Sport 600 ACE
2018 - Bombardier (Engine Family

6

75

67

7

31

66

6

90

67

6

75

67

6.26

31

66

8

90

66

JBCXY.8997GF)
MX-Z TNT 900 ACE
MX-Z Blizzard 900 ACE
Renegade Adrenaline 900 ACE
Renegade Enduro 900 ACE
Grand Touring LE 900 ACE V
Grand Touring SE 900 ACE
Expedition Sport 900 ACE
2018 – Yamaha (Engine Family
JYMXY1.04BDB)
Yamaha RS10Y
2017 - Bombardier (Engine Family
HBCXY.6007GF)
Ski Doo MX-Z Sport 600 ACE
Ski Doo Renegade Sport 600 ACE
Ski Doo Grand Touring Sport 600 ACE
Ski Doo Tundra Sport 600 ACE
Ski Doo Tundra LT 600 ACE
Ski Doo Expedition Sport 600 ACE
2017 – Bombardier (Engine Family
HBCXY.8997GF)
Ski Doo MX-Z TNT 900 ACE
Ski Doo MX-Z Blizzard 900 ACE
Ski Doo Renegade Adrenaline 900 ACE
Ski Doo Renegade Enduro 900 ACE
Ski Doo Grand Touring LE 900 ACE V
Ski Doo Grand Touring SE 900 ACE
Ski Doo Expedition Sport 900 ACE
2017 - Yamaha (Engine Family
HYMXY.104BDB)
Yamaha RS10Y
2016 – Bombardier (Engine
FamilyGBCXY.6007GF)
https://www.nps.gov/yell/planyourvisit/newbatlist.htm

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11/4/2019

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

Ski Doo MX-Z Sport 600 ACE
Ski Doo Renegade Sport 600 ACE
Ski Doo Grand Touring Sport 600 ACE
Ski Doo Tundra Sport 600 ACE
Ski Doo Tundra LT 600 ACE
Ski Doo Expedition Sport 600 ACE
2016 – Bombardier (Engine Family

8

90

67

7

31

66

8

90

66

8

90

67

FBCXY.8997GF)
Ski Doo MX-Z TNT 900 ACE
Ski Doo Renegade Adrenaline 900 ACE
Ski Doo MX-Z Blizzard 900 ACE
Ski Doo Renegade Enduro 900 ACE
Ski Doo Grand Touring LE 900 ACE
Ski Doo Expedition Sport 900 ACE
2016 – Yamaha (Engine Family
GBCXY1.04BDB)
Yamaha RS10Y
2015 – Bombardier (Engine Family
FBCXY.6007GF)
Ski Doo MX-Z Sport 600 AC
Ski Doo Grand Touring Sport 600
Ski Doo Expedition Sport 600 ACE
Ski Doo Renegade Sport 600 ACE
Ski Doo Tundra LT 600 ACE
Ski Doo Tundra Sport 600 ACE
2015 – Bombardier (Engine Family
FBCXY.8997GF)
Ski Doo MX-Z TNT 900 ACE
Ski Doo Renegade Adrenaline 900 ACE
Ski Doo GSX LE 900 ACE V
Ski Doo Grand Touring LE 900 ACE
Ski Doo Expedition Sport 900 ACE
Snowmobiles older than 2015 model years are not approved.

Overview of BAT Requirements
Air Emissions (g/kW-hr)

Sound Emissions (dBA)

Hydrocarbons Carbon Monoxide
https://www.nps.gov/yell/planyourvisit/newbatlist.htm

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

Average 2-Stroke (Non-BAT)

150

400

78

NPS New BAT Requirements 151

902

673

1Hydrocarbons:
2Carbon

certified by EPA to a Family Emissions Limit (FEL) of 15 g/kW-hr or less.

Monoxide: certified by EPA to a Family Emissions Limit (FEL) of 90 g/kW-hr or less. Air emission figures

for carbon monoxide and hydrocarbons presented are either the Official Test Results (OTR) or the certified FEL.
The Official Test Results are actual measured emissions.
3To

operate in the park after March 15, 2015, a population of measurements for a snowmobile model may not

exceed a mean output of 67 dBA, and a single measurement may not exceed 69 dBA, using the J1161 test
procedures.

Ride a Snowmobile or
Snowcoach

Snowmobile Access
Program

Snowmobile Access
Program Logistics

Take a guided tour of wintry
Yellowstone.

Learn about our non-commercially
guided snowmobile program.

Review the logistics and regulations
for the Non-commercially Guided
Snowmobile Access Program.

Last updated: October 16, 2019

CONTACT THE PARK

Mailing Address:
PO Box 168
Yellowstone National Park, WY 82190-0168
Phone:
307-344-7381

https://www.nps.gov/yell/planyourvisit/newbatlist.htm

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