Iowa Code Title VIII. Transportation [Chs. 306-330B] § 321.67. Certificate of title must be executed

1. No person, except as provided in sections 321.23 and 321.45, section 321.52, subsection 2, paragraph “b”, and section 321.52, subsection 4, paragraph “a”, shall sell or otherwise dispose of a registered vehicle or a vehicle subject to registration without delivering to the purchaser or transferee thereof a certificate of title with such assignment thereon as may be necessary to show title in the purchaser.

2. No person shall purchase or otherwise acquire or bring into this state a registered vehicle or a vehicle subject to registration without obtaining a certificate of title thereto except for temporary use or as provided in sections 321.23 and 321.45, section 321.52, subsection 2, paragraph “b”, and section 321.52, subsection 4, paragraph “a”.