Any common carrier which would be a farm labor contractor solely because the carrier is engaged in the farm labor contracting activity of transporting any migrant or seasonal agricultural worker. Any nonprofit charitable organization or public or private nonprofit educational institution. Any person who engages in any farm labor contracting activity solely within a twenty-five mile intrastate radius of such person's permanent place of residence and for not more than thirteen weeks per year.
Any custom combine, hay harvesting, or sheep shearing operation.
Any custom poultry harvesting, breeding, debeaking, desexing, or health service operation provided the employees of the operation are not regularly required to be away from their permanent place of residence other than during their normal working hours. Any person whose principal occupation or business is not agricultural employment, when supplying full-time students or other individuals whose principal occupation is not agricultural employment to string or harvest shade grown tobacco and to engage in related and incidental agricultural employment, unless there are individuals under eighteen years of age who are providing transportation on behalf of such person.