WAC 296-150M-0300
What approval do I need to alter a
manufactured home? If you alter a manufactured home in
Washington state, you must purchase permits prior to making an
alteration. This includes:
(1) Alterations made by a contractor working for a
homeowner;
(2) Alterations made by a homeowner to their own home;
and
(3) Alterations made by a dealer after a manufactured
home is sold.
Note:
The homeowner can't purchase a permit on behalf of the contractor.