American Society of Power Engineers, Inc.

Establishing National
Standards for Power Engineers.

Facility Operating Engineer Third Class


  • Minimum age - 18
  • Education - High School Diploma, GED or equivalent
  • Experience - 6 months or 3 credit hour of Boiler Training or equivalent
  • Power Engineering Training and/or Completion of an ASOPE® approved course
  • Examination - Written (Oral or Practical when necessary)
  • Maximum Boiler Size (unsupervised) LP - 150 BHP
  • Maximum refrigeration or Air Conditioning (unsupervised) - 100 ton

Curriculum at the Minimum:

  • Basic Mathematics
  • Low Pressure Boilers Types and Construction
  • Basic Boiler Fittings
  • Safety and Relief Valves
  • Basic Combustion Theory
  • Fuels and Burner Types
  • Steam and Hydronic Boilers
  • Thermal Fluid Heaters
  • Facility Valve Identification
  • Basic Operation and Care of Oil and Gas Burners
  • Boiler Safety and Operating Controls
  • Basic Boiler Operation
  • Dangerous Boiler Conditions
  • Facility Basic Steam Systems and Accessories
  • Basic Electrical Theory
  • General Industry Safety
  • Facility Basic Potable, Makeup and Cooling Water Systems
  • Facility Basic Preventive Maintenance
  • Facility Basic Heating and Cooling Systems