Exam M2
Commercial Mechanical Inspector
Inspecting mechanical systems installed in commercial applications and regulated by the International Mechanical Code, including locating specific sections to interpret regulations accurately.
- Questions
- 50
- Time limit
- 120 min
- Per question
- 144 sec
- Book
- Open
Where the marks sit
Exhaust and Ventilation Systems carries 20 percent on its own. Study time should follow this, not the order of the chapters.
Transcribed from ICC's published M2 content outline. Areas sum to 100 percent.
Full topic breakdown
Common questions
How many questions are on the ICC M2 exam?
The M2 Commercial Mechanical Inspector exam has 50 multiple-choice questions with a 120-minute limit, which works out to about 144 seconds per question.
Is the ICC M2 exam open book?
Yes. The M2 is an open-book exam. The constraint is time rather than recall: you have roughly 144 seconds per question including the lookup.
How long is the ICC M2 exam?
120 minutes, or 2 hours, for 50 questions.
What is on the ICC M2 exam?
7 topic areas. The heaviest is Exhaust and Ventilation Systems at 20 percent, followed by General Administration at 15 percent. The full weighting is published by ICC and reproduced on this page.
Which code book do I need for the M2 exam?
The International Mechanical Code is the primary reference. Confirm the edition your jurisdiction has adopted, because adopted editions vary by state and the exam is written to a specific one.
The kit that goes on the table
2024 IRCThe book itself
2021 IRCIf you register on 2021
2024 Fast-TabsPlace them yourself
Construction Master ProFeet-inch math, no errorsMatch the book and tabs to the edition you register for.Confirm which, first.