Washington Manufactured Home Installation Certification is a requirement for individuals who install manufactured homes in the State of Washington. A certified installer must have a valid Washington State Electrical Specialty Technician Certification from the Department of Labor & Industries, as well as a valid Washington State Manufactured Home Installation Certification from the Washington State Department of Health. There are two types of Washington Manufactured Home Installation Certification: Standard Level and Advanced Level. The Standard Level Certification requires completion of a 30-hour course, which covers topics such as structural design, plumbing, electrical, construction, and inspection. The Advanced Level Certification requires completion of a 60-hour course, which covers topics such as advanced construction, installation, and inspection. Both levels of certification require an additional 10-hour on-site evaluation by a Washington State-approved evaluator. Upon successful completion of the course and evaluation, the installer will be issued a Washington State Manufactured Home Installation Certification.