PZEV Emission Warranty


Although PZEV vehicles are not required by all states, Subaru makes them available throughout the United States. PZEV vehicles are required to be sold in the following states that have adopted the California Air Resources Board (CARB) Low Emission Vehicle (LEV2) standards:

  • California
  • Connecticut
  • Maine
  • Massachusetts
  • New Jersey New York
  • Oregon
  • Pennsylvania
  • Rhode Island
  • Vermont
  • Washington


Only those PZEV vehicles sold and registered in California, Connecticut, Maine, Massachusetts, New Jersey, New York, Rhode Island, and Vermont are eligible for the 15-year/150,000-mile emission warranty.3 (The states of Oregon, Pennsylvania, and Washington elected not to adopt the PZEV emission warranty.)

Vehicles with PZEV emissions ratings have such tight pollution controls, and the burning of fuel is so complete, that in very smoggy urban areas, exhaust out of the tailpipe can actually be cleaner than the air outside.


Today’s SUBARU BOXER engine has evolved to a level that doesn’t require many changes to earn a PZEV label. The differences between non-PZEV and PZEV certified Subaru vehicles can be found in two areas:


  • The catalytic converter
  • The Engine Control Module (ECM) programming


The catalytic converter for a PZEV engine utilizes a higher volume of precious metals than the standard converter. Although that makes the catalytic converter more efficient, it is also more expensive to produce. The PZEV engine’s ECM program has been enhanced to operate the engine for reduced emissions.


At a relatively low cost, and without any special equipment, Subaru PZEV vehicles help their owners to contribute to the environment by emitting fewer pollutants to the atmosphere. These vehicles have the same fuel and maintenance requirements as non-PZEV naturally aspirated vehicles, so there’s nothing unusual about their care. They do so for a retail price of only $200 more than a non-PZEV Subaru model.


To date, more than 150,000 Subaru owners drive PZEV vehicles.


1 SmartWay is a registered trademark of the U.S. Environmental Protection Agency.
2 For 2009 Forester, Legacy, and Outback 2.5L, non-turbo models certified as Partial Zero Emission Vehicles (PZEV) that are sold, registered, and operated in CA, CT, ME, MA, NJ, NY, OR, PA, RI, VT, and WA. PZEV emissions warranty applies only in certain states. See your dealer for complete information on emissions and new car limited warranties.
3 For all Forester, Legacy, and Outback 2.5L non-turbo models certified as PZEV that are sold, registered, and operated only in California and certain other states.













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