Iowa Admin. Code r. 661-121.13
No holder of a license or identification card shall use, display, cause to be printed or distributed in any fraudulent, false, or misleading manner, cards, letterheads, circulars, brochures, or any other advertising material or advertisement in which any name or indicia of the license status of the licensee is set forth in any manner other than the name under which the licensee is duly licensed.
Such holder of a license or identification card shall not publish or cause to be published any advertisement, letterhead, circular or statement or phrase of any sort which suggests that the holder is a peace officer.
Any violation of this rule may result in suspension or revocation of the identification card or the license, and possible referral for criminal prosecution.
Iowa Admin. Code r. 661-121.13