Iowa Code § 97B.53B
94 Acts, ch 1183, §48; 96 Acts, ch 1187, §50; 2000 Acts, ch 1077, §65; 2001 Acts, ch 68, §21, 24; 2002 Acts, ch 1135, §30, 38; 2003 Acts, ch 145, § 286; 2004 Acts, ch 1103, §48, 61; 2008 Acts, ch 1032, §201; 2008 Acts, ch 1171, §39, 48, 49