Iowa law places limitations on hours that may be worked by employees under the age of 18.
Drivers must have at least 10 hours off duty following 12 consecutive hours of work; and they may not work for more than a total of 12 hours during any 24-hour period, which must then be followed by at least 8 hours off duty. Drivers for urban transit companies may not drive for more than 12 hours in any 24-hour period. Drivers working a split shift must have at least 1 hour off between shifts (IA Code Sec. 321.449).