Iowa Code
Chapter 1B - STATE FLAG
Section 1B.2 - Use of state flag.

1B.2 Use of state flag.
The design shall be used as the state flag and may be displayed on all proper occasions where the state is officially represented, either at home or abroad, or wherever it may be proper to distinguish the citizens of Iowa from the citizens of other states. When displayed with the national emblem, the state flag shall in all cases be subservient to and placed beneath the stars and stripes.
[C24, 27, 31, 35, 39, §469; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §31.2]
C93, §1B.2
95 Acts, ch 1, §2