An official website of the State of Oregon
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This web-based study guide has been developed by the division to prepare for the Manufactured Dwelling Installer (MDI) license exam.
Limited Installers (LI) and Limited Skirting Installers (LSI) are not required to pass an exam, but should familiarize themselves with this study guide and the codebook.
2010 Oregon Manufactured Dwelling Installation Specialty Code
Download the complete study guide - Includes practice examination #1
Applicants must submit a completed Proof of Training Certificate with their completed license application. Those submitted to the division without the training certificate will not be processed until the training certificate is received.
Proof of Training Certificate
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