ICC EXAM – W32 National Standard Residential Mechanical Class C License


To become a licensed W32 National Standard Residential Mechanical-Class C, you are required to pass an open-book exam. We offer the books, tabs, and a fully online and inclusive educational course to prepare you to sit for the National Standard Residential Mechanical Class C exam.?The W32 National Standard Residential Mechanical?Class C Exam Review includes the following: Highlighting Guides, Practice Exams, Math and Calculations, Study Tips, Licensing Information, Instructor Support. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself.


Course Overview

The W32 National Standard Residential Mechanical—Class C Exam Review includes the following:

  • Highlighting Guides
  • Practice Exams
  • Math and Calculations
  • Study Tips
  • Licensing Information
  • Instructor Support

How It Works


Obtain pre-approval from the state (if applicable).


Purchase Exam Prep materials.


Schedule and pass your state exams.


Submit to the state your application, licensing fee, and proof of insurance.

Requirements To Complete

About This License

If you do work on residenital HVAC systems, refrigeration, piping, and plumbing in a city, county, or state that accepts the International Code Council, that jurisdiction will require you to take and pass a Code Council examination that is based on the International Codes.

Requirements to Obtaining Your License

Prior to scheduling a test, you should first consult with your local or state licensing agency to determine which examination you should take. Some agencies may also require you to meet certain prequalification criteria prior to testing.

Applying For Your License

Passing an ICC contractor exam is NOT a license to practice and does not guarantee licensing in any jurisdiction. We highly recommend contacting the jurisdiction in which you wish to work for more information on their specific exam requirements for licensure.

Exam Details

W32 Residential Mechanical Class C Exam

  • 70 questions
  • 3 hours
  • $110
  • 70% required to pass
  • Topics include General Requirements, Appliances and Equipment, Duct Systems, Combustion Air, Chimneys and Vents, Fuel Supply Systems.
  • To schedule your exam, visit www.pearsonvue.com/icc/ or call Pearson VUE at 1-877-234-6082

Books and References for the Exam

  • 2012 International Residential Code

The following books are NOT permitted to be taken into the exam.

  • 2012 International Mechanical Code
  • 2012 International Fuel Gas Code
  • Manual J
  • Flexible Duct Performance and Installation Standards
  • ACCA Ductulator

Exam Review Education

Online Training: The program takes you through each one of the reference books that the exam is based on showing you exactly what to highlight. After your highlighting is completed with each book, you have the option take an online practice test to reinforce concepts presented. Also, there is an extensive math and plans analysis portion. The program narrated and animated.

Continuing Education

Depends on your jurisdiction.

Reciprocity Agreement

Some reciprocity depending on jurisdiction.

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