What are the insignia application requirements?
(1) If you are requesting insignia for conversion vendor units or medical units that you intend to manufacture under a new design plan, your completed application must include:
(a) A completed design plan approval request form;
(b) One complete set of design plans, specifications, engineering analysis and test procedures and results (when applicable), plus one additional set for each manufacturing location where the design plan will be used; (c) At least one set of design plans must have an original wet stamp from a professional engineer or architect licensed in Washington state. We will retain the set with the original wet stamp; and
(d) A one-time initial filing fee, the design plan fee, and the fee for each insignia (see WAC ).
(2) If you are requesting insignia under an approved design plan, your completed application must include:
(a) A completed insignia application form; and
(b) The fee for each conversion vendor unit or medical unit insignia (see WAC ).
This is where I saw the stamp bit, and I saw a couple posts on the forum here indicating that L&I told them a/c wasn't allowed due to "energy inefficiency"