Iowa Code § 257.21
89 Acts, ch 135, §21; 91 Acts, ch 159, §1; 97 Acts, ch 23, §25; 2003 Acts, ch 145, § 286; 2006 Acts, ch 1158, §3; 2013 Acts, ch 123, §42, 45, 46; 2018 Acts, ch 1161, §50, 53, 54; 2020 Acts, ch 1062, §94
Referred to in §257.29, 298.2, 298.14
Limit on total surtax, §298.14