(1) The full legal name (and, where required by RCW 48.30.050, the home office) of the actual insurer shall be shown in each advertisement. The form number or numbers of any specific policy or policies advertised shall be stated in each advertisement which is an invitation to contract. An advertisement shall not use a trade name, any insurance group designation, name of the parent company of the insurer, name of a particular division of the insurer, service mark, slogan, symbol, or other device in a manner which would have the capacity and tendency to mislead or deceive as to the true identity of the insurer.

(2) No advertisement shall use any combination of words, symbols, or physical materials which by their content, phraseology, shape, color, or other characteristics are so similar to combination of words, symbols, or physical materials, used by agencies of the federal government or of this state, or otherwise appear to be of such a nature that it tends to confuse or mislead prospective insureds into believing that the solicitation is in some manner connected with an agency of the municipal, state, or federal government.