Iowa Code § 49.31
86 Acts, ch 1224, §11, 12; 87 Acts, ch 221, §13, 14; 89 Acts, ch 136, §36; 90 Acts, ch 1238, §18; 91 Acts, ch 129, §12; 97 Acts, ch 170, §30 - 32; 2002 Acts, ch 1134, §32, 115; 2006 Acts, ch 1002, § 2, 4; 2008 Acts, ch 1032, § 150; 2017 Acts, ch 155, §20 - 22, 44; 2019 Acts, ch 148, §27, 33, 48, 49; 2020 Acts, ch 1063, § 30, 386, 391, 392; 2021 Acts, ch 147, §24, 54
Referred to in §43.28, 43.31, 49.53, 49.57A, 376.5