https://www.legis.iowa.gov/legislation/BillBook?ga=90&ba=SF167
Text from the bill, (senate file 167)
"A business that accepts a secondary student in a work-based learning program shall not be subject to civil liability for any claim for bodily injury to the student or sickness or death by accident of the student arising from the business’s negligent act or omission during the student’s participation in the work-based learning program at the business or worksite"
The return to normalcy meant return to pre-war normalcy.