Iowa Code § 321.50
83 Acts, ch 5, §3, 5; 84 Acts, ch 1305, §55; 89 Acts, ch 260, §3; 92 Acts, ch 1175, §30; 97 Acts, ch 108, §6; 99 Acts, ch 13, §9; 99 Acts, ch 188, §10; 2000 Acts, ch 1016, §7, 44, 47; 2000 Acts, ch 1149, §166, 187; 2001 Acts, ch 153, §17; 2003 Acts, ch 8, §13; 2003 Acts, ch 145, §286; 2004 Acts, ch 1013, §15 - 17, 35; 2004 Acts, ch 1092, §3
Referred to in §321.24, 321.42, 321.45, 321.48, 321.131, 331.557
Subsection 5, paragraph a amended
NEW subsection 6 and former subsections 6 and 7 renumbered as 7 and 8