Iowa Code § 7A.4
Reports of the following officials and departments shall cover the year ending December 31 of each year, and shall be filed as soon as practicable after said date:
[C24, 27, 31, 35, 39, §247; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §17.4] 88 Acts, ch 1134, §13; 90 Acts, ch 1253, §122 C93, §7A.4 98 Acts, ch 1119, §7; 2004 Acts, ch 1082, §1; 2016 Acts, ch 1030, §1