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In order to locate the appropriate emissions certificate, you will need to:
  1. Locate the emissions label on the engine (valve cover or engine block)
  2. Record engine build year and EPA Family number from the emissions label
John Deere Emission Certified Label 
To search for industrial, generator drive, marine and on-highway engine emissions certificates by engine serial number you can Sign In, if you already have a John Deere user name and password from JDParts or JohnDeere.com/Ag. If you do not yet have a user name or password, Register now.