Oregon Manufactured Dwelling Installer (MDI) License

The Manufactured Dwelling Installer (MDI) License allows you to do the following work:

  • Site preparation
  • Installation of:
    • Manufactured Dwelling
    • Cabanas
    • Skirting

How to Get the Manufactured Dwelling Installer (MDI) License in Oregon?

  1. Fill out the application form:
  2. Complete a work history document and fill out the experience verification form:
  3. Sign an applicant’s affidavit and choose the preferred examination location
  4. Mail or fax a sealed packet of all the previous documents to:
    Oregon Building Codes Division
    P.O. Box 14470
    Salem, OR 97309-0404
    Fax: 503-378-2322
  5. Schedule, pay, and take the examination administered by the Building Codes Division. For more information on the test, refer to the study guide:
  6. Expect the license issued by the Building Codes Division via mail

Oregon Manufactured Dwelling Installer (MDI) License Exam

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

Oregon Manufactured Dwelling Installer (MDI) Trade Exam

  • Testing Company: Building Codes Division©
  • Number of Questions: 80
  • Types of Questions: Multiple choice
  • Time Allowed: 240 Minutes
  • Minimum Passing Score: 60 questions (75%)
  • Subjects Involved:
    • Definitions
    • Administration
    • Fire and Life Safety
    • Site Installed Features
    • Under-Floor Enclosures
    • Installation Procedures
    • Electrical Connections
    • Plumbing Connections
    • Mechanical Connections
    • Preparation of Appliances
    • Pre-Installation, Foundations and Piers
  • Building Codes Division© Manufactured Dwelling Installer (MDI) Official Content Outline

Oregon Manufactured Dwelling Installer (MDI) Book Set

This set of books includes all required references for the Manufactured Dwelling Installer (MDI) exam. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.

  • OREGON MANUFACTURED DWELLING INSTALLER (MDI) - BOOK SET WITHOUT TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $40.00
  • OREGON MANUFACTURED DWELLING INSTALLER (MDI) - BOOK SET WITH TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $60.00

Oregon Manufactured Dwelling Installer (MDI) Exam Books

Books Allowed in Testing