Iowa Code § 321.189
84 Acts, ch 1022, §4; 84 Acts, ch 1292, §3; 87 Acts, ch 167, §1; 87 Acts, ch 206, §2, 3; 90 Acts, ch 1230, §35; 92 Acts, ch 1175, §22, 23; 93 Acts, ch 164, §1; 94 Acts, ch 1102, §2; 95 Acts, ch 67, §25; 95 Acts, ch 95, §1; 95 Acts, ch 118, §22; 96 Acts, ch 1017, §1 - 3; 97 Acts, ch 74, §1; 98 Acts, ch 1073, §9; 98 Acts, ch 1112, §6, 7, 14, 16; 99 Acts, ch 13, §14; 2001 Acts, ch 90, §2; 2001 Acts, ch 132, §5; 2001 Acts, ch 180, §7; 2003 Acts, ch 108, §56; 2006 Acts, ch 1068, §26; 2007 Acts, ch 44, §29; 2010 Acts, ch 1061, §180; 2010 Acts, ch 1140, §5; 2012 Acts, ch 1091, §2
Referred to in §49.78, 321.177, 321.180B, 321.189A, 321.190, 321.191, 321.213
Driver's license fees, see §321.191
Intermediate driver's license to indicate applicability of six-month restriction on unrelated minor passengers; see §321.180B, subsection 2