Installer certification must be renewed every three years

Certified installers must do the following prior to expiration of their certificate:

A renewal notice and application form will be mailed to each installer approximately 45 days prior to their expiration date. The renewal application and payment must be received by the department on or before the installer's certification expiration date.

A certified installer who fails to do this must reapply for installer training and certification and meet all requirements for certification.

Acrobat PDF file Installer Certification Renewal Form (48 KB PDF)

For more information:

RCW 43.22 Sections 335-495 - Manufactured/mobile homes, factory-assembled structures. (
RCW 43.22A - Mobile and Manufactured Home Installation. (
WAC 296-150I - Manufactured Home Installer Training and Certification Program, Installation Code. (
WAC 296-150M - WA Manufactured Home Code. (

 Get Help Downloading Files (files open in a new window).