Iowa Code § 197.2
The license fee shall be three dollars per annum, and each license shall expire on March 1 after the date of issue.
[C27, 31, 35, §3112-b3; C39, §3112.3; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §197.2]