Iowa: www.iowaworkforce.org/labor/childlabor.htm
Minnesota: www.doli.state.mn.us/childlbr.html
Nebraska:http://www.dol.state.ne.us/legallaws/Child%20Labor%20Law.pdf
North Dakota: www.nd.gov/labor/services/wage-hour/child-labor.html
South Dakota: www.youthrules.dol.gov