A special plate shall expire at midnight on December 31 of even-numbered years. A person shall not be considered to be driving a vehicle with an expired registration for one month following the expiration date of the special plate.
Iowa Code § 321.61
Expiration of special plates
[S13, §1571-m16; C24, 27, 31, 35, §4868; C39, §5004.05; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §321.61]
Official source: Iowa Legislature. Reproduced from public-domain Iowa statutes; confirm against the official source for the current text. Not legal advice.