A Washington Manufactured Home Installation Certificate is a document that is issued by the Department of Commerce and is required for the installation of all manufactured homes in the state of Washington. It is issued after an inspection by an approved third-party inspector and certifies that the home was installed according to the Washington State Administrative Code. The certificates are valid for up to four years, or until the home is sold, whichever comes first. There are two types of Washington Manufactured Home Installation Certificate: a Permanent and a Temporary Certificate. The Permanent Certificate is issued when the home is installed in compliance with all applicable laws and regulations, and the Temporary Certificate is issued when the home is installed in compliance but requires additional modifications or repairs to meet the requirements.




