What is the category of your new or reconstructed stationary engine >500 horsepower at a major source?

 Compression Ignition Limited Use, operates for less than 100 hours per year  Spark ignition limited use, operates less than 100 hours per year
 Emergency  Non-emergency compression ignition
 Non-emergency spark ignition 4-stroke lean burn  Non-emergency spark ignition 2-stroke lean burn
 Non-emergency spark ignition 4-stroke rich burn  Landfill or Digester gas

 

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