Iowa Code § 904.206
The correctional facility at Newton shall be utilized as a correctional facility. The facility may include minimum security facilities and violator facilities pursuant to section 904.207.
85 Acts, ch 21, §33, 54 CS85, §246.206 91 Acts, ch 219, §6 C93, §904.206 93 Acts, ch 46, §5; 97 Acts, ch 130, §5; 2010 Acts, ch 1144, §1