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The “New BAT” designation refers to a snowmobile that meets the park’s Best Available Technology (BAT) standard. 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. Model Year 2015-2018 snowmobiles must have less than 6,000 miles on the odomoter to be approved. View a list of local businesses that rent New BAT snowmobiles. Approved Snowmobiles - Model Years 2015-20252025 - Bombardier (Engine Family SBCXY.6007GF) Grand Touring Sport 600 ACE Skandic LE 600 ACE 2025 - Bombardier (Engine Family SBCXY.8997GH) Grand Touring LE 900 ACE Grand Touring Sport 900 ACE Expedition LE 900 ACE Expedition SE 900 ACE Skandic LE 900 ACE 2024 - Bombardier (Engine Family RBCXY.6007GF) Grand Touring Sport 600 ACE Skandic LE 600 ACE 2024 - Bombardier (Engine Family RBCXY.8997GF) Grand Touring Sport 900 ACE Expedition LE 900 ACE Expedition SE 900 ACE Skandic LE 900 ACE 2023 - Bombardier (Engine Family PBCXY.6007GF) Grand Touring Sport 600 ACE Skandic LE 600 ACE 2023 - Bombardier (Engine Family PBCXY.8997GF) Grand Touring Limited 900 ACE Grand Touring Sport 900 ACE Expedition LE 900 ACE Expedition SE 900 ACE Skandic LE 900 ACE Skandic SE 900 ACE 2022 - Bombardier (Engine Family NBCXY.6007GF) Grand Touring Sport 600 ACE Skandic WT 600 ACE 2022 - Bombardier (Engine Family NBCXY.8997GF) Grand Touring Limited 900 ACE Grand Touring Sport 900 ACE Expedition LE 900 ACE Expedition SE 900 ACE Skandic WT 900 ACE 2021 - Bombardier (Engine Family MBCXY.6007GF) Grand Touring Sport 600 ACE Skandic WT 600 ACE 2021 - Bombardier (Engine Family MBCXY.8997GF) Grand Touring Limited 900 ACE Grand Touring Sport 900 ACE Expedition LE 900 ACE Expedition SE 900 ACE Skandic WT 900 ACE 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) 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 model year snowmobiles must have fewer than 6,000 miles. 2018 - Bombardier (Engine Family 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 model year snowmobiles must have fewer than 6,000 miles. 2018 – Yamaha (Engine Family JYMXY1.04BDB) Yamaha RS10Y 2018 model year snowmobiles must have fewer than 6,000 miles. 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 model year snowmobiles must have fewer than 6,000 miles. 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 model year snowmobiles must have fewer than 6,000 miles. 2017 - Yamaha (Engine Family HYMXY.104BDB) Yamaha RS10Y 2017 model year snowmobiles must have fewer than 6,000 miles. 2016 – Bombardier (Engine FamilyGBCXY.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 2016 model year snowmobiles must have fewer than 6,000 miles. 2016 – Bombardier (Engine Family 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 model year snowmobiles must have fewer than 6,000 miles. 2016 – Yamaha (Engine Family GBCXY1.04BDB) Yamaha RS10Y 2016 model year snowmobiles must have fewer than 6,000 miles. 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 model year snowmobiles must have fewer than 6,000 miles. 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 2015 model year snowmobiles must have fewer than 6,000 miles. Snowmobiles older than 2015 model years are not approved. Overview of BAT Requirements
1Hydrocarbons: certified by EPA to a Family Emissions Limit (FEL) of 15 g/kW-hr or less. 2Carbon 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
Take a guided tour of wintry Yellowstone. 
Snowmobile Access Program
Learn about our non-commercially guided snowmobile program. 
Snowmobile Access Program Logistics
Review the logistics and regulations for the Non-commercially Guided Snowmobile Access Program. | ||||||||||||||
Last updated: October 4, 2024