Michigan Boiler Installer 4B Contractor License

The Boiler Installer 4B Contractor License allows you to do the following work:

  • Boilers of any firing rate
  • Boilers with a maximum capacity of 300,000 lbs of steam per hour
  • Install non-boiler external piping
  • Replace non-boiler external piping

How to get the Boiler Installer 4B Contractor's License in Michigan?

  1. Meet the licensing requirements for the Boiler Installer 4B Contractor's License:
    • Be at least 18 years of age.
    • Have a minimum of 5 years of experience in all the phases of boiler installation in the Boiler Installer 4B class.
      • Installers with 2 years of experience in the manufacturing, construction, design, or inspection of boilers, can use that time towards the 5 years of required minimum experience; repairers can use up to 3 years.
      • If any installation requires welding, it is essential to file welding procedure specifications and qualification reports that meet ASME© code Section IX (welding, brazing, and fusing qualifications) requirements with the boiler division.
    • It is not a requirement to have a clean criminal record to apply for these licenses.
  2. Submit an online application or mail a completed paper application that includes proof of required experience from a previous employer and the applicable license fee.
  3. Once the application is approved, PSI© will send information regarding instructions for registration and scheduling.
  4. Take and pass the examination for the desired license.
  5. Once the examination is successfully completed, the license will be issued.

Michigan Boiler Installer 4B Contractor License Exam Prep Course

Michigan Boiler Installer 4B Contractor License Exam

Below is all the information related to the trade exam, including the official reference list.

Michigan Boiler Installer 4B Contractor Trade Exam

  • Testing Method: Computer-based testing
  • Testing Company: PSI©
  • Number of Questions: 50
  • Types of Questions: Multiple Choice
  • Time Allowed: 180 Minutes
  • Minimum Passing Score: 70%
  • Subjects Involved (% of Questions):
    • ASME Section I (24%)
    • ASME Section IV (8%)
    • ASME Section IX (22%)
    • ASME B31.1 (20%)
    • ASME CSD-1 (6%)
    • Michigan Boiler Rules (12%)
    • Skilled Trades Regulation Act 407 of 2016 (6%)
    • NBIC Section 1 (2%)
  • PSI© Boiler Installer 4B Official Content Outline

Michigan Boiler Installer 4B Contractor Book Set

This set of books includes all required references for the Boiler Installer 4B exam. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.

  • MICHIGAN BOILER INSTALLER 4B - BOOK SET WITHOUT TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $3,592.60
  • MICHIGAN BOILER INSTALLER 4B - BOOK SET WITH TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $3,672.60

Michigan Boiler Installer 4B Contractor Exam Books

Books Allowed in Testing