Iowa Code § 321.89
84 Acts, ch 1305, §59; 85 Acts, ch 64, §2; 87 Acts, ch 123, §1; 88 Acts, ch 1158, §66; 92 Acts, ch 1238, §31; 95 Acts, ch 48, §3; 95 Acts, ch 118, §13; 96 Acts, ch 1126, §4; 98 Acts, ch 1074, §22; 2000 Acts, ch 1016, §11; 2005 Acts, ch 35, §31; 2005 Acts, ch 64, §1; 2009 Acts, ch 130, § 23, 24; 2021 Acts, ch 22, §1, 2; 2021 Acts, ch 174, § 15; 2022 Acts, ch 1021, § 67, 187
Referred to in §8A.323, 80.39, 321.20B, 321.88, 321.90, 321.91, 321J.4B, 555B.1
2022 amendment to subsection 2 applies retroactively to July 1, 2021; 2022 Acts, ch 1021, §187