Iowa Code § 321.99: Fraudulent use of registration.

A person shall not knowingly lend to another a registration card, registration plate, special plate, or permit issued to the person if the other person desiring to borrow the card, plate, or permit would not be entitled to the use of it. A person shall not knowingly permit the use of a registration card, registration plate, special plate, or permit issued to the person by one not entitled to it, nor shall a person knowingly display upon a vehicle a registration card, registration plate, special plate, or permit not issued for that vehicle under this chapter. A person convicted of a violation of this section is guilty of a simple misdemeanor punishable as a scheduled violation under section 805.8A, subsection 2.