The RSES Commercial Air Conditioning Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• Air Conditioning Principles
• Air Distribution
• Fans
• Filters
• Cooling Towers & Condensers
• Refrigerants
• Instruments
• Controls
• Electrical
• Compressors
• Absorption Machines
• Chilled Water Systems & Reciprocating Chillers
• Using the Pressure Temperature Chart
• Service and Troubleshooting
• Using the Psychrometric Chart
  

The RSES Commercial Refrigeration Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• Refrigeration Principles
• Trade Tools & Test Instruments
• Piping
• Refrigerants & Oils
• Safety
• Compressors
• Condensers and Cooling Towers
• Evaporators & Defrost
• Metering Devices
• Systems
• Accessories
• Electrical
• Controls
• Installation, Service and Troubleshooting
• Pressure Enthalpy Chart

The RSES Controls Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• General Control Theory
• Control Design Criteria
• Safety Controls
• Control Wiring
• Pneumatic Controls
• Electro-Mechanical Controls
• Solid-State Controls

The RSES Domestic Service Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• Principles of Refrigeration
• Electrical
• Air Conditioning
• Refrigerators & Freezers
• Safety
• Ice Makers/Machines
• Defrost
• Humidifiers
• Soldering & Brazing

The RSES Dynamic Compression Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• Rotary Compressors
• Scroll Compressors
• Screw Compressors
• Centrifugal Compressors
• Absorption Units
• General Accepted Practices

The RSES Heating Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• General
• Oil
• L.P. (Propane)
• Instruments
• Electric Heat
• Heat Pump
• Natural Gas
• Hydronics
• Controls

The RSES Heat Pump Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• Basic Refrigeration
• Heat Pump Components
• Motors
• Electrical
• Miscellaneous
• Evacuation and Charging
• Duct Systems
• Air-to-Air Heat Pump Systems
• Air-to-Air Heat Pump Defrost
• Supplemental Heat
• Water-Source Heat Pumps
• Safety

The RSES HVACR Electrical Specialist examination is 100 questions and requires a score of 80% or better to pass.
Categories on the examination include:

• Fundamental Concepts of Electricity
• Basic Principles of Direct Current
• Basic Principles of Alternating Current
• Series and Parallel Circuits
• Electrical Symbols and Schematic Diagrams
• Electrical Safety
• Resistors and Resistance
• Capacitors and Capacitance
• Transformers/Power Supplies
• Relays, Contactors, Starters
• Motors/Compressors
• Conductors
• Solid-State Components
• Miscellaneous Components