International Code Council M2 Exam Information and Actual Questions

  • Exam Code/Number: M2
  • Exam Name/Title: Commercial Mechanical Inspector
  • Certification Provider: International Code Council
  • Corresponding Certification: Commercial Inspector
  • Exam Questions: 52
  • Updated On: Jul 10, 2026

M2
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International Code Council
M2 Exam
Commercial Mechanical Inspector

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International Code Council M2 Exam Overview:

Certification Vendor:International Code Council (ICC)
Exam Name:ICC Commercial Mechanical Inspector (M2)
Exam Number:M2
Real Exam Qty:80
Exam Format:Multiple-choice, Computer-based testing
Available Languages:English
Related Certifications:ICC Residential Mechanical Inspector
ICC Mechanical Inspector
ICC Commercial Building Inspector
Certificate Validity Period:3 years (renewal required via continuing education units)
Passing Score:70%
Exam Duration:180 minutes
Sample Questions:International Code Council M2 Sample Questions
Exam Way:Computer-based exam delivered at Pearson VUE testing centers or online proctored options where available
Pre Condition:No formal prerequisite required; field experience in mechanical systems or code enforcement is recommended
Official Syllabus URL:https://www.iccsafe.org

International Code Council M2 Exam Syllabus Topics:

SectionObjectives
Topic 1: HVAC Systems and Equipment- Heating and cooling systems
  • 1. Duct systems design and installation
    • 2. Air handling units and system components
      Topic 2: Mechanical Appliances and Equipment- Boilers, furnaces, and water heaters
      • 1. Installation and inspection requirements
        • 2. Safety controls and venting
          Topic 3: Ventilation and Indoor Air Quality- Ventilation requirements
          • 1. Exhaust systems
            • 2. Outdoor air intake requirements
              Topic 4: Mechanical Code (IMC) Fundamentals- International Mechanical Code application
              • 1. Scope and definitions
                • 2. General regulations
                  Topic 5: General Administration and Mechanical Inspection Practice- Code enforcement procedures and inspector responsibilities
                  • 1. Permit requirements and inspections
                    • 2. Documentation and reporting
                      Topic 6: Fuel Gas Systems- Gas piping and appliance installation
                      • 1. Gas safety and testing
                        • 2. Combustion air requirements


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