If you alter a conversion vendor unit or medical unit, we must inspect the alteration.

(1) Before we perform an alteration inspection and attach an alteration insignia, you must send us:

(a) Description of the proposed alteration;

(b) The plan review fee;

(c) The inspection fee; and

(d) The insignia application and fee.

(2) A design plan review is not required if the alteration can be made without altering any of the existing structure and if the alteration does not involve one or more of the systems listed in WAC 296-150V-0300.